{"product_id":"uotang-d998-set-t602-150w-2-way-speakers-mk8800-kt88-45wx2-tube-amp-mt909-dac-mt903-cd-player","title":"UOTANG D998 Set T602 150W 2-Way Speakers + MK8800 KT88 45Wx2 Tube Amp + MT909 DAC + MT903 CD Player","description":"\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0); background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eOptional Configuration:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e* T602 Speakers + MK8800 Tube Amp\u003cbr\u003e* T602 Speakers + MK8800 Tube Amp + MT903 CD Player\u003cbr\u003e* T602 Speakers + MK8800 Tube Amp + MT909 DAC\u003cbr\u003e* T602 Speakers + MK8800 Tube Amp + MT909 DAC + MT903 CD Player\u003cbr\u003e\u003cspan\u003e\u003cb\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0); background-color: rgb(255, 255, 0);\"\u003eT602 150W 2-Way Bookshelf Speakers:\u003c\/span\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e1. Features:\u003c\/b\u003e\u003cbr\u003eOne Tone Purifies the Soul with Clear and Transparent Sound\u003cbr\u003e* Loudspeaker with astonishing purity and transparency\u003cbr\u003e\u003cbr\u003eUOTANG T602 7-inch Carbon Fiber Loudspeaker\u003cbr\u003e* Two-Way Passive Bookshelf Speaker\u003cbr\u003e* 180MM 7-inch Mid-Bass Driver\u003cbr\u003e* 30MM Treble Unit with Silk Dome Diaphragm\u003cbr\u003e* German 12K Carbon Fiber Mid-Bass Cone\u003cbr\u003e* UOTANG Self-Developed Wave-Shaped Embossed Surround Technology\u003cbr\u003e* 50MM Large Voice Coil Structural Design\u003cbr\u003e* Dupont Fiber Mid-Bass Surround\u003cbr\u003e* U.S. LINEARXSYSTEM LMS Acoustic System Testing\u003cbr\u003e* Finnish Birch Plywood Clad with Brazilian Solid Wood Veneer\u003cbr\u003e* Minimum Phase System Crossover Design\u003cbr\u003e* Full-Symmetric Low-Distortion Magnetic Circuit System\u003cbr\u003e* Port Tube with Flared Horn-Shaped Asymmetric Opening\u003cbr\u003e* Hook-and-Loop Grille with No Cabinet Perforations\u003cbr\u003e* Anti-Vibration Spikes for Audiophile-Grade Application\u003cbr\u003e* Wide Amplifier Compatibility for Easy Driving\u003cbr\u003e\u003cbr\u003eCaptures Authentic Pure Sound to Hear What You Imagine\u003cbr\u003e* Deliver astonishing purity and transparency\u003cbr\u003e* With remarkable tangible purity and transparency in sound, the T602 is a worthwhile choice. Equipped with a large-diameter 180mm 7-inch mid-bass driver for stable and solid performance. The driver diaphragm adopts lightweight yet high-strength German 12K plain-woven carbon fiber, treated with customized high-damping coating to optimize damping performance and reach ideal damping status. This endows the T602 mid-bass cone with solidity, light weight and high damping simultaneously, serving as the stable foundation for its transparent, crisp sound.\u003cbr\u003e* A 30mm silk dome tweeter delivers appropriate rigidity via its spherical dome structure; customized damping glue raises damping coefficient while imported magnetic fluid drastically cuts distortion. Precision die-cast Al-Mg baffle restrains unwanted vibration energy, and multi-layer optimized coordination enables the T602 tweeter to reproduce pristine, accurate and delicate sound.\u003cbr\u003e* Fitted with UOTANG self-developed wave-shaped embossed surround formed by integrated thermoplastic elastic material, it expands excursion range, reduces minor frequency distortion and improves low-frequency response.\u003cbr\u003e* The 50mm large voice coil design delivers high dynamic performance and well-controlled low-frequency output.\u003cbr\u003e* Computer-aided full-symmetric low-distortion magnetic circuit minimizes distortion, paired with Dupont fiber mid-bass surround for steady linear piston movement.\u003cbr\u003e* Integrated die-cast Al-Mg alloy basket effectively suppresses resonance and acoustic contamination.\u003cbr\u003e* The whole acoustic design of T602 undergoes comprehensive simulation and testing via America LinearxSystem LMS acoustic system and U.S. LEAP acoustic software.\u003cbr\u003e* An asymmetric horn-shaped port tube balances distortion and compression efficiently. Minimum-phase crossover features ultra-fast transient response and low energy accumulation.\u003cbr\u003e* Rhodium-plated pure copper binding posts ensure superior signal conductivity and excellent anti-oxidation capability.\u003cbr\u003e* 8 pieces of audiophile-grade solid aluminum alloy plus copper anti-vibration spikes are provided free of charge.\u003cbr\u003e* Cabinet is constructed from high-density, high-durability Finnish birch plywood with excellent damping, fully wrapped with imported Brazilian solid wood veneer featuring natural wood grain.\u003cbr\u003e* Hook-and-loop mounted grille requires no cabinet drilling to lower resonance from rigid cabinet contact; the grille adopts premium neutral grey finish for superior environmental compatibility.\u003cbr\u003e* Streamlined minimalist styling endows T602 with an elegant and refined appearance. Focused on acoustic performance and premium material selection across all specs, the T602 reproduces impressively pure and transparent sound, standing as an outstanding UOTANG product integrating advanced technology and premium craftsmanship.\u003cbr\u003e\u003cbr\u003eRefine Pure and Transparent Sound\u003cbr\u003e* Accompany You Into Clear Sonic Wonderland\u003cbr\u003e* The Ultimate Pick of UOTANG Bookshelf Speakers\u003cbr\u003e\u003cbr\u003eStriking Pristine Clarity and Piercing Transparent Audio\u003cbr\u003e* Purity and transparency alone cannot fully define T602's fine character.\u003cbr\u003e* Every note unfolds a touching auditory journey.\u003cbr\u003e\u003cbr\u003eOur Team's Defining Masterpiece of UOTANG Speakers\u003cbr\u003e* Top-tier configuration builds stable overall performance with ingenuity\u003cbr\u003e* Premium raw materials unlock full-bodied sound performance\u003cbr\u003e* Innovative craftsmanship elevates every tiny detail\u003cbr\u003e* High-grade texture perfects cabinet beauty with natural timber\u003cbr\u003e\u003cbr\u003eTreble with Superior Purity\u003cbr\u003e* Adopts silk soft dome tweeter diaphragm; the dome geometry delivers adequate rigidity for the diaphragm. Custom damping glue elevates damping coefficient, paired with imported magnetic fluid to drastically cut distortion. Precisely die-cast Al-Mg baffle suppresses unwanted vibrational energy. Synergized multi-layer optimizations grant the T602 tweeter outstanding pure sound with precise pitch and delicate timbre, enabling instant immersive pure audio upon playback.\u003cbr\u003e\u003cbr\u003e30mm Silk Soft Dome Diaphragm Tweeter with Lower Resonance Interference \u0026amp; Reduced Phase Distortion\u003cbr\u003e* The dome geometry of T602 tweeter delivers sufficient rigidity for its diaphragm. Custom-formulated damping glue greatly boosts damping coefficient to curb resonance for clean, precise sound output. \u003cbr\u003e* Its design philosophy differs fundamentally from conventional rigid diaphragms which strive to eliminate cone-split distortion. Instead, the T602 leverages such inherent split distortion: any generated phase deviation gets counterbalanced by opposite-phase distortion just like mutual balance of Yin and Yang. Combined with imported magnetic fluid, cumulative offset minimizes overall phase distortion and maintains consistent, orderly sound radiation.\u003cbr\u003e\u003cbr\u003eWider Frequency Range \u0026amp; Smoother Frequency Response for More Natural and Pleasant High-Frequency Performance\u003cbr\u003e* The T602 tweeter features excellent low-end frequency extension to enable a low crossover point for seamless coupling with mid-bass drivers. It shares part of the mid-bass frequency spectrum to free up extra room for low-frequency extension and deepen sub-bass reach. Besides, its gently sloping high-frequency roll-off delivers softer, more refined treble than rigid diaphragms with steep roll-off curves.\u003cbr\u003e\u003cbr\u003eMore Transparent Mid-Bass Performance\u003cbr\u003e* The T602 is equipped with a large-diameter 180mm 7-inch mid-bass driver. Its cone is crafted from imported lightweight yet high-strength German 12K carbon fiber. An oversized 50mm voice coil pairs with full-symmetric low-distortion magnetic circuit system. The all-new wave-shaped embossed surround adopts integrated thermoplastic elastic molding. Long-distance layout between surround and spider plus integrally die-cast Al-Mg alloy basket endows the mid-bass with outstanding transparency, delivering crisp yet solid bass free of muffled sound. No veiled tonal character can be perceived, bringing steady and lucid audio the instant the unit plays.\u003cbr\u003e\u003cbr\u003eGerman 12K Ultra-Light High-Strength Carbon Fiber with Higher Rigidity, Ultra-Light Weight \u0026amp; Superior Damping\u003cbr\u003e* The T602 mid-bass cone takes premium lightweight German high-strength carbon fiber as base material with tight plain-weave construction. Under precise temperature and pressure control, macro-molecular polymer is evenly coated atop the carbon fiber substrate to retain its original woven texture, enabling even dispersion of resonant energy across every fiber strand. Further impregnated with customized UOTANG high-damping coating to optimize damping into ideal status, it delivers consistent damping against sound wave energy and linearly dissipates resonance. The cone thus combines sturdiness, light weight and high damping to upgrade driver performance substantially, laying a solid foundation for the speaker's remarkably transparent and crisp sound.\u003cbr\u003e* The carbon fiber cone cuts diaphragm weight while boosting rigidity and structural strength, outperforming conventional cone materials with superior physical traits including high stiffness and controllable non-linear distortion. Ultra-light in mass with elevated damping capacity, it enables ultra-fast transient response to reproduce crisp and natural audio.\u003cbr\u003e* Carbon fiber cones mainly come in three weave types: plain, twill and satin. Plain weave features dense interlacing nodes for rigid, slim, uniform cones with identical front and rear surface texture, standing as the optimal weave for maximum structural rigidity.\u003cbr\u003e\u003cbr\u003eUOTANG Custom Wave Embossed Surround Technology Boosts Frequency Response, Cuts Distortion and Delivers Clearer Sound\u003cbr\u003e* Protected by intellectual property right, this proprietary surround is equipped on T602.\u003cbr\u003e* The exclusive wave-shaped surround is integrally molded from thermoplastic elastic material, forming an optimized physical structure for sound wave dispersion to enable longer piston travel of the cone. It expands mid-low frequency SPL output for tight, dynamic and clean frequency roll-off. Freer cone movement elevates mid-bass frequency response and minimizes subtle frequency distortion. Combined with three core merits of carbon fiber cone, the T602 reproduces steady, solid mid-bass free of muffled or veiled sound, with well-defined bass instantly perceptible upon playback.\u003cbr\u003e* Connecting cone and basket, the T602 wave embossed surround serves dual purposes: enabling unrestricted piston motion of the diaphragm while delivering proper damping to stabilize its travel; more crucially, it absorbs cone break-up resonance without deformation-induced distortion that would impair sound radiation. Conventional semi-circular convex surrounds tend to deform and generate distortion during long-stroke operation.\u003cbr\u003e* UOTANG's proprietary wave embossed surround extends effective excursion to lift low-frequency response, drastically curbs surround deformation distortion, and eliminates interference from rebounded resonant energy, yielding remarkably cleaner sound output.\u003cbr\u003e\u003cbr\u003e50mm Large Voice Coil Design with Vigorous Dynamic \u0026amp; Stable Performance\u003cbr\u003e* The 180mm carbon fiber mid-bass driver is fitted with an oversized 50mm voice coil featuring excellent heat dissipation and powerful driving factor to deliver high dynamic range and well-controlled low-frequency response. Paired with computer-simulated full-symmetric low-distortion magnetic circuit for enhanced linearity and reduced distortion, plus the lightweight trait of carbon fiber, it drastically upgrades transient speed and tonal purity of mid-low frequency for swifter and more vigorous dynamic output.\u003cbr\u003e* Mechanically, the 50mm large voice coil expands bonding contact area with carbon fiber cone for improved structural fastness, enabling stable piston travel under intense movement to generate superior dynamics and tighter low end. Its enlarged surface facilitates rapid heat dissipation for higher power handling capacity. Electrically, large-diameter coil wound with thick gauge wire tolerates greater input current to further lift the driver's power rating.\u003cbr\u003e\u003cbr\u003eDupont Fiber Mid-Bass Spider and Balanced \u0026amp; Stable Linear Piston Excursion\u003cbr\u003e* The spider and surround jointly suspend the carbon fiber cone and voice coil. Constructed from dissimilar materials like two springs with differing elasticity pulling a single load, consistent linear travel is challenging to achieve. Built from Dupont fiber, the spider closely matches the wave-shaped surround in damping rigidity and resonant properties to synchronize tensile force, damping and resonance during cone movement. Spaced far apart via optimized assembly layout, they stabilize piston motion for balanced linear mid-bass operation, a core design detail behind the speaker's exceptional crisp, transparent sound.\u003cbr\u003e\u003cbr\u003eIntegrally Die-Cast Al-Mg Alloy Basket with Effective Resonance Suppression \u0026amp; Reduced Acoustic Coloration\u003cbr\u003e* Rigid integrally die-cast aluminum-magnesium frame restrains structural resonance to drastically cut sound coloration induced by basket vibration. Featuring outstanding thermal conductivity, the basket fits tightly against pole pieces to rapidly dissipate excess heat conducted from voice coil to magnetic assembly. Accelerated heat release improves power handling and boosts the driver's dynamic headroom capacity.\u003cbr\u003e\u003cbr\u003ePremium Raw Material \u0026amp; Superior Craftsmanship\u003cbr\u003e* Exquisite build from cabinet interior to exterior\u003cbr\u003e* The cabinet is constructed from Finnish birch plywood cross-laminated under high temperature and pressure, featuring uniform inner layers, high density, high mechanical strength and excellent inherent damping. At a solid 15mm thickness paired with favorable damping performance, it drastically dampens cabinet resonance and standing wave vibration to minimize sound coloration. The entire enclosure is wrapped with imported Brazilian solid wood veneer delivering natural grain, authentic hue and refined organic texture.\u003cbr\u003e\u003cbr\u003eMinimalist Design with Sophisticated Ingenuity\u003cbr\u003e* Redefine modern aesthetic standard\u003cbr\u003e\u003cbr\u003eHook-and-Loop Mounted Dustproof Acoustic Grille\u003cbr\u003e* Premium neutral mid-grey finish\u003cbr\u003e\u003cbr\u003eNatural Wood Texture Comes Into View\u003cbr\u003e* Finnish birch plywood cabinet with Brazilian solid wood veneer\u003cbr\u003e\u003cbr\u003eAsymmetric Horn-Shaped Port Tube\u003cbr\u003e* Rhodium-plated pure copper binding posts\u003cbr\u003e\u003cbr\u003eExceed Standard Acoustic Specifications. Engineered for Scientific, Natural Sound Presentation\u003cbr\u003e* The whole acoustic design undergoes comprehensive testing via U.S. LinearxSystem LMS acoustic measurement system and simulation analysis with U.S. LEAP acoustic software. Repeated calibration and golden-ear listening tests optimize sonic performance by balancing objective electroacoustic data and subjective audition for scientifically refined sound reproduction.\u003cbr\u003e\u003cbr\u003eAsymmetric Horn-Opening Port Tube and Minimum-Phase Crossover Network\u003cbr\u003e* After multiple enclosure trials with varied port profiles, the T602 adopts an asymmetric horn port with 110mm outer diameter and 85mm inner diameter. Its tapered bore (small inner aperture, large outer flare) and total 155mm depth strike optimal balance between distortion reduction and compression control. Equipped with minimum-phase crossover to eliminate overshoot \u0026amp; reverse ringing, delivering fast transient response and minimal energy accumulation.\u003cbr\u003e\u003cbr\u003eDrill-Free Hook-and-Loop Secured Grille\u003cbr\u003e* The sound-permeable grille is woven from polyester fiber featuring excellent crease resistance, shape retention, tensile strength and elastic recovery. Four-corner hook-and-loop fastening removes cabinet drilling holes to cut resonant vibration from rigid grille-cabinet contact. Finished in premium neutral mid-grey for elegant understated styling that harmonizes with diverse room decor. Fine cross-weave fabric delivers refined grain detail to elevate premium aesthetic.\u003cbr\u003e\u003cbr\u003eRecommended Amplifier Matching Options\u003cbr\u003e1. UOTANG MK8800 Pure Tube Amplifier\u003cbr\u003e2. UOTANG MK8900 Integrated Amplifier\u003cbr\u003e3. UOTANG MK9200 Pure Preamp + MK9600 Pure Power Amp Combo\u003cbr\u003e\u003cbr\u003eGold-Plated Pure Copper Binding Posts for High-Fidelity Signal Transmission with Minimal Loss\u003cbr\u003e* The T602 audio terminals are crafted from pure copper with gold plating for superior, stable signal conduction. Excellent anti-oxidation property retains long-term metallic gloss, enabling the binding posts to maintain premium performance permanently against aging.\u003cbr\u003e\u003cbr\u003eVibration-Isolation Spikes\u003cbr\u003e* Premium audiophile-grade spikes eliminate cabinet resonance without altering acoustic character. Constructed from solid aluminum alloy \u0026amp; copper with high-density anti-slip rubber base, independent suspended structure allows 1–3mm adaptive height fine-tuning to counteract acoustic feedback vibration.\u003cbr\u003e* Top Holder Diameter: 38mm\u003cbr\u003e* Base Diameter: 45mm\u003cbr\u003e* Overall Height: 32mm\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2. Specifications:\u003c\/b\u003e\u003cbr\u003e* Dimensions (WxHxD): 220mmx370mmx300mm (excluding binding posts)\u003cbr\u003e* Recommended Amplifier: MK8900\/MK8800\/MK9200+MK9600\u003cbr\u003e* Sensitivity: 86dB\u003cbr\u003e* Impedance: 8Ω\u003cbr\u003e* Power Handling: 20W–150W\u003cbr\u003e* Frequency Response: 50Hz–30KHz\u003cbr\u003e* Net Weight: 18KG\/Pair\u003cbr\u003e* Finish: Natural Wood Veneer\u003cbr\u003e* Tweeter Unit: 30mm Silk Soft Dome Diaphragm Tweeter\u003cbr\u003e* Mid-Bass Unit: 180mm 7-inch Carbon Fiber Mid-Bass Driver\u003cbr\u003e\u003cb\u003e\u003cbr\u003e\u003cspan\u003eMK8800 KT88 45Wx2 Tube Amp:\u003c\/span\u003e\u003cbr\u003e1. Features:\u003c\/b\u003e\u003cbr\u003eUOTANG New Full-Size Tube Amplifier MK8800\u003cbr\u003e* Floor-standing \u0026amp; Bookshelf Speakers Fully Drivable\u003cbr\u003e* Power Transformer: 350W\u003cbr\u003e* Output Transformer: 130W (*2pcs)\u003cbr\u003e* Imported Core Components, Italian Microcontroller Chip\u003cbr\u003e* Brand Tubes: 9pcs\u003cbr\u003e* Dual Push-Pull Modes: Triode\/Ultra-linear\u003cbr\u003e* Handcrafted Point-to-Point Wiring + PCB Circuitry\u003cbr\u003e* Large Rectifier Panel with Dual Meters, Fixed Bias Adjustable\u003cbr\u003e* Usable as Pure Power Amplifier\u003cbr\u003e* PRE OUT Audio Output Port\u003cbr\u003e* True Balanced Input Terminal\u003cbr\u003e* Dual Filter Design\u003cbr\u003e\u003cbr\u003ePremium Components\u003cbr\u003e* 6KZ8 ×4 for Preamp Voltage Amplification\u003cbr\u003e* Custom KT88 ×4 for Power Stage Amplification\u003cbr\u003e* Rectifier Tube: 17BE3 (Vintage Tube from USA), Authentic Tube Rectification\u003cbr\u003e* Impressive Powerful Output to Drive Any Large-Sized Loudspeakers\u003cbr\u003e* Equipped with 350W Power Transformer \u0026amp; Dual 130W Output Transformers\u003cbr\u003e* Independent Output Transformer for Left \u0026amp; Right Channels (Japanese EI Silicon Steel Core + Layered Cross Winding Craft)\u003cbr\u003e\u003cbr\u003eComplete Configuration \u0026amp; Functions to Meet Upgrade Demands of Audiophiles\u003cbr\u003e* Dual-Function Meters on Large Rectifier Panel for Working Status Monitoring \u0026amp; Fixed Bias Adjustment\u003cbr\u003e* Dual Push-Pull Options: TRIODE\/ULTRA-LINEAR\u003cbr\u003e* Multi-Function Unit: PRE IN Pure Power Amp Mode\/PRE OUT Audio Output\u003cbr\u003e* Exclusive Dual Filter Design, Automotive-Grade Baking Paint Finish, Full Aluminum Remote Controller\u003cbr\u003e* Handcrafted Point-to-Point Soldering on Key Positions plus Anti-Interference PCB Layout\u003cbr\u003e* Power-On Mute Delay Protection, True Balanced Audio Input Port\u003cbr\u003e* Independent Audio Relay \u0026amp; Independent Output Relay for Separate Dual-Channel Protection\u003cbr\u003e\u003cbr\u003ePremium Audiophile-Grade Components\u003cbr\u003e* High-Performance Microcontroller (for ATMEL) from Italy\u003cbr\u003e* 4pcs Precision Trim Potentiometers for BAPTER, BA6208 Motor Driver IC\u003cbr\u003e* JRC5532D operational amplifier, high-precision 5-band color ring resistors, potentiometer for ALPS made in Japan\u003cbr\u003e* Imported audio-specific electrolytic capacitors: Germany audio capacitors for CHIRMCAP, plus low-ESR electrolytic capacitors for Rubycon, Nichicon and NCC.\u003cbr\u003e\u003cbr\u003ePerfect Fusion of Power and Softness\u003cbr\u003e* Deliver Sound of Ideal Beauty\u003cbr\u003e* Satisfy the Discriminating Hearing of Veteran Audiophiles\u003cbr\u003e\u003cbr\u003eFulfill Your Ultimate Pursuit of Perfect Sound\u003cbr\u003e* The MK8800 full-size tube amplifier delivers robust dynamic response alongside exceptional detail retrieval, featuring warm, delicate and open tonal performance. Premium audiophile-grade component configuration lays a solid foundation for outstanding acoustic output, enabling the unit to achieve the ideal sound performance you expect from a high-end tube amplifier.\u003cbr\u003e\u003cbr\u003eA Tribute Work by Our Team for Veteran Audiophiles\u003cbr\u003e* Most seasoned audiophiles own a vintage amplifier accompanied for years, cherished for its enduring remarkable sound signature. MK8800 is engineered to become your lifelong classic vintage-style amplifier, retaining timeless charm and recreating glorious audio performance year after year.\u003cbr\u003e\u003cbr\u003eNine Tubes for Harmonious Sound, An Elite Upgrade in Acoustics \u0026amp; Configuration\u003cbr\u003e* Preamp Voltage Amplifier Tubes - 4pcs Import Vintage 6KZ8: Manufactured by General Electric founded in 1892, 6KZ8 is low-noise vacuum tube; each unit drives one power tube for lower noise, superior channel separation and immersive stereo imaging.\u003cbr\u003e* Sound Character: Exquisite \u0026amp; mellow timbre, vivid tonal texture, precise resolution and expansive dynamic soundstage.\u003cbr\u003e* Power Output Tubes - 4pcs UOTANG Custom KT88: Custom-tailored KT88 tubes exclusive for UOTANG feature high withstand voltage, large output power, high trans-conductance, low internal resistance, easy drive and minimal distortion to effortlessly drive large-size loudspeakers. \u003cbr\u003e* Sound Character: Punchy low frequency, rich \u0026amp; solid mid-range, smooth and delicate high frequency.\u003cbr\u003e* Rectifier Tube - Vintage 17BE3 (for RCA) from USA: vintage 17BE3 serves for tube-type rectification and overload protection; independent dual high-voltage circuit cuts down tube power loss to enhance authentic tube tone. 17BE3 brings neutral, straightforward and precise analysis for authentic and natural sound reproduction.\u003cbr\u003e\u003cbr\u003eAstonishing Driving Power to Effortlessly Run Any Large Speaker\u003cbr\u003e* The MK8800 power system consists of one power transformer plus a pair of output transformers.\u003cbr\u003e* Power Transformer: 350W toroidal design for high efficiency and continuous stable power supply.\u003cbr\u003e* Single-channel Output Transformer: 130W, total 260W for dual channels.\u003cbr\u003e* Only 25W\/45W of the full power is utilized for dual-mode output.\u003cbr\u003e* With 3~5 times power margin, its actual driving capability equals roughly a regular 300W solid-state amp. It easily drives all types of speakers with full, robust sound performance to handle large-scale audio scenes perfectly.\u003cbr\u003e\u003cbr\u003ePower Transformer System\u003cbr\u003e* 2pcs Exclusive UOTANG Wide-Band Output Transformers and Japanese EI Silicon Steel Core + Layer Cross Winding Craft: Audio transformers are the core component of tube amplifiers. These two tailor-made output transformers are exclusively customized for MK8800 for independent left\/right channel use and incompatible with other amplifier models. Handcrafted with layered cross winding for enhanced precision and minimized magnetic leakage, optimizing primary inductance, leakage inductance and distributed capacitance to realize wide frequency response. It suppresses series\/parallel resonance, non-linear distortion and phase delay down to ideal levels, defining the overall premium performance of MK8800.\u003cbr\u003e* High-Efficiency Toroidal Power Transformer with Sturdy Power Reserve: MK8800 adopts premium Grade-A isolated toroidal power transformer wound with high-temperature resistant QZY polyimide enameled wire; isolated primary \u0026amp; secondary windings deliver outstanding stability, impedance and anti-interference performance. Class-J isolated transformer effectively absorbs current surge, improves damping factor for tighter speaker control, generating thick low-frequency with clear outline and solid stereo imaging. Toroidal transformer features no air gap, low reluctance, tiny flux leakage and low copper loss per turn; polyimide enamel wire boasts excellent surface smoothness, high breakdown voltage and superior thermal shock resistance.\u003cbr\u003e\u003cbr\u003eDual-Mode Push-Pull Circuit: Triode Mode\/Ultralinear Mode\u003cbr\u003e* UOTANG MK8800 supports two switchable circuit topologies to cover diversified tonal preferences.\u003cbr\u003e* Ultralinear Mode: 45W × 2 Output Power. Abundant power and damping deliver grand, powerful sound with wide, deep frequency range, excelling at large-scale symphony and high-dynamic program material.\u003cbr\u003e* Triode Mode: 25W × 2 Output Power. Smoother, round timbre with refined detail and superior layering, ideal for vocal, string and pure tone reproduction.\u003cbr\u003e\u003cbr\u003eStandardized \u0026amp; Precise Circuit Layout with Hand-Soldered Point-to-Point Wiring on Critical Nodes\u003cbr\u003e* MK8800 adopts combined point-to-point wiring + standardized PCB construction. Main signal amplification circuits use point-to-point hand soldering to lower noise: large-signal paths reduce internal resistance via point-to-point wiring while small-signal PCB routing minimizes interference and improves production consistency. Hundreds of components are standardized for stable uniform performance across every unit. As tube amplifiers run on high voltage \u0026amp; low current with strict insulation requirements, PCB layout optimizes insulation, signal-to-noise ratio and anti-vibration performance; paired with point-to-point wiring at key sections for dual advantages: enhanced safety, higher efficiency, lower noise and steadier sound output.\u003cbr\u003e\u003cbr\u003eHigh-Precision Core for Full-System Coordinated Control\u003cbr\u003e* MK8800 equips high-performance MCU (for ATMEL) from Italy, cooperating with precision trim potentiometers for BAPTER, BA6208 motor driver IC, JRC5532D op-amps and quartz crystal oscillators as the central control system to deliver responsive and powerful overall performance.\u003cbr\u003e\u003cbr\u003ePower-On Delay Warm-Up Protection System for Pure Sound Output\u003cbr\u003e* MK8800 features auto warm-up circuit with around 30-second startup mute. Combined power-on delay \u0026amp; mute protection realizes shock-free power-up sequence: low voltage heats tube filaments first with tiny pre-charging current for capacitor energy storage; high voltage rises gradually afterward to fully warm vacuum tubes before audio output.\u003cbr\u003e\u003cbr\u003eLarge Full-Panel Dual VU Meters with Dual Functions\u003cbr\u003e* Real-time operational readout \u0026amp; precise fixed bias adjustment at a glance\u003cbr\u003e* MK8800 is equipped with high-precision dual-channel dual-function VU level meters. The meter serves dual purposes: monitoring operating status and BIAS adjustment for straightforward tube condition inspection and fine fixed-bias tuning. External independent BIAS ADJ knob enables convenient calibration to optimize vacuum tubes for peak performance.\u003cbr\u003e* Full-view large-panel layout paired with black dial \u0026amp; warm backlight delivers refined understated visual texture alongside responsive needle movement.\u003cbr\u003e\u003cbr\u003eFixed Bias Adjustment Design\u003cbr\u003e* Manual adjustment of output tube bias to secure optimal operating point.\u003cbr\u003e* Adjustable bias to recalibrate working status when replacing same-spec or interchangeable vacuum tubes.\u003cbr\u003e* Built-in VU calibration meter eliminates the need for external multimeter during setup.\u003cbr\u003e\u003cbr\u003eMulti-Purpose Design with Pure Power Amp PRE IN Mode\u003cbr\u003e* MK8800 supports pure power amplifier mode via PRE IN input to receive signal from standalone preamplifier units. This expandable configuration upgrades system flexibility to satisfy diversified audio setup demands across multiple application scenarios.\u003cbr\u003e\u003cbr\u003eMulti-Functional PRE OUT Audio Output Port\u003cbr\u003e* MK8800 is equipped with PRE OUT audio output for versatile setup options: it supports synchronous playback with external audio devices and connection to active subwoofers, fulfilling diversified configuration demands for seasoned audiophiles.\u003cbr\u003e\u003cbr\u003ePremium Automotive-Grade Paint Finish \u0026amp; Refined Exterior\u003cbr\u003e* UOTANG signature black \u0026amp; gold color scheme balances futuristic tech aesthetics and elegant styling.\u003cbr\u003e* Both chassis and protective vent grille adopt automotive baking paint for seamless integrated appearance, glossy luxurious texture and long-lasting durability against aging.\u003cbr\u003e* Comes with solid full-aluminum infrared remote controller featuring delicate matte surface craftsmanship.\u003cbr\u003e\u003cbr\u003eExclusive Dual Filter Design for Thorough Power Purification\u003cbr\u003e* MK8800 adopts LC π-type filter circuit composed of one high-inductance choke transformer plus two filter capacitors. Pulsating voltage goes through dual-stage filtering: most AC components are blocked by the choke coil before residual AC signals get bypassed via dual capacitors. This delivers smoother output voltage with sufficient purification, elevated output level and outstanding SNR up to 92dB.\u003cbr\u003e\u003cbr\u003eFlexible Compatibility for All Music Genres \u0026amp; Home Audio Devices\u003cbr\u003e* MK8800 is compatible with diverse HIFI audio sources and daily consumer electronics including smartphones, televisions and PCs via direct wired link or adapter connection. Powerful hardware enables effortless driving of most commercial loudspeakers and authentic reproduction across vocal, instrumental, symphony, pop, classical and light music styles.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2. More Details:\u003c\/b\u003e\u003cbr\u003e17BE3 Preamp Vacuum Tube Rectifier\u003cbr\u003e* 17BE3 genuine tube rectifier with overload protection\u003cbr\u003e* Adopts vintage RCA USA rectifier tube for authentic tube-style rectification to preserve classic tube timbre and optimize vacuum tube performance.\u003cbr\u003e\u003cbr\u003eMotor-Driven Potentiometer for ALPS from Japan\u003cbr\u003e* High precision \u0026amp; low coloration\u003cbr\u003e* Guarantees balanced stereo output with superior linear precision and minimal dynamic noise.\u003cbr\u003e\u003cbr\u003eIndependent Audio Relay for Full-Range Targeted Protection\u003cbr\u003e* Three sets of audio inputs paired with three dedicated independent relay groups for separate channel safeguard respectively.\u003cbr\u003e\u003cbr\u003eIndependent Output Relay with Separate Dual-Channel Protection\u003cbr\u003e* One dedicated output relay per channel plus an extra grounding relay for chassis ground safety.\u003cbr\u003e\u003cbr\u003eTrue Balanced Audio Input for Abundant Sonic Details\u003cbr\u003e* Equipped with professional XLR balanced input jack to retrieve richer audio fine details.\u003cbr\u003e\u003cbr\u003eCustom Spherical Isolation Feet for Effective Vibration Damping\u003cbr\u003e* Specially engineered spherical shock-absorbing foot pads cut resonance to retain subtle sound details.\u003cbr\u003e\u003cbr\u003eGold-Plated Pure Copper Terminals for Efficient Stable Signal Transmission\u003cbr\u003e* Low output internal resistance improves signal conductivity and reduces transmission loss effectively.\u003cbr\u003e\u003cbr\u003eEasy-Detachable Protective Cover \u0026amp; Auto-Grade Baking Paint Craft\u003cbr\u003e* Chassis and grille share unified automotive baking paint for integrated elegant appearance.\u003cbr\u003e\u003cbr\u003eHigh-Precision Regulator Circuit with Four Imported Voltage Regulator Tubes\u003cbr\u003e* Delivers steady supply voltage for robust thick low end, crisp mid-high frequency and intact detail under large dynamic swing.\u003cbr\u003e\u003cbr\u003ePremium Imported Capacitors \u0026amp; Japanese 5-Band Precision Resistors\u003cbr\u003e* Audio-grade capacitors for CHIRMCAP, Rubycon, Nichicon \u0026amp; NCC; high-temperature, long-lifespan low-ESR electrolytic \u0026amp; film capacitors.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e3. Specifications:\u003c\/b\u003e\u003cbr\u003e* Dimension: W390mm x H210mm x D320mm (including binding posts)\u003cbr\u003e* Rated Output Power:\u003cbr\u003e- UL Ultra-linear Mode: 45Wx2 (equivalent to ~300W×2 ordinary amp driving capability)\u003cbr\u003e- TR Triode Mode: 25W×2 (equivalent to ~150W×2 ordinary amp driving capability)\u003cbr\u003e* Harmonic Distortion: 1% at 1kHz\u003cbr\u003e* Input Sensitivity: 340mV (Combined Input)\/2000mV (PRE IN Pure Power Input)\u003cbr\u003e* Input Resistance: 100KΩ\u003cbr\u003e* Output Tap Impedance: 4Ω, 8Ω\u003cbr\u003e* Frequency Response: 10Hz~35kHz (-1.5dB)\u003cbr\u003e* Channel Balance: \u0026lt;0.5dB\u003cbr\u003e* SNR: 92dB\u003cbr\u003e* Total Power Consumption: 260W\u003cbr\u003e* Net Weight: 18.5KG\u003cbr\u003e* Vacuum Tube Configuration: 6KZ8×4\/17BE3×1\/KT88×4\u003cbr\u003e* Operating Voltage: AC 220V±5% 50Hz\u003cbr\u003e\u003cbr\u003e\u003cb\u003e4. Rear Panel:\u003c\/b\u003e\u003cbr\u003e* RCA Input: CD (Dual RCA Audio Input Jack)\u003cbr\u003e* Balanced Input: XLR (True Balanced Port for balanced-output audio sources)\u003cbr\u003e* Preamp Input: PRE IN (Connect external preamp, operate as standalone power amplifier)\u003cbr\u003e* Audio Output: PRE OUT (Link active subwoofer or cascade additional power amps)\u003cbr\u003e* Left\/Right Speaker Output Taps: 0Ω, 4Ω, 8Ω\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan style=\"color: rgb(255, 42, 0); background-color: rgb(255, 255, 0);\"\u003eMT903 CD Player (Optional) for 12cm and 8cm Discs:\u003c\/span\u003e\u003cbr\u003e1. Features:\u003c\/b\u003e\u003cbr\u003eHigh-Fidelity CD Player\u003cbr\u003e* Superior sound quality performance\u003cbr\u003e\u003cbr\u003eDigital Turntable\/Analog Dual Output\u003cbr\u003e* The player supports both digital and analog dual outputs and can function as a CD digital turntable. It reads digital audio data from CDs and outputs the signals via coaxial or optical ports to an external standalone decoder, such as the UOTANG MT909 Decoder. The external decoder carries out independent decoding and then transmits audio signals to power amplifiers.\u003cbr\u003e* It also features a built-in CD decoding analog output system: the unit reads digital audio from CDs, performs internal decoding, and sends processed audio signals to power amplifiers through dual RCA or balanced interfaces\u003cbr\u003e\u003cbr\u003eSupport for Multiple CD Formats\u003cbr\u003e* Supports reading, parsing and decoding of various CD formats and sizes\u003cbr\u003e* Compatible formats: CD, HQCD, HQ II, ADMS, Vinyl CD, CD-R, etc.\u003cbr\u003e* Dual disc size support: 12cm\/8cm\u003cbr\u003e* Fully meets the format and decoding demands of most audiophiles\u003cbr\u003e\u003cbr\u003eMulti-Functional Convenient Playback Modes\u003cbr\u003e* Numeric track selection, random playback, single track repeat, all tracks repeat\u003cbr\u003e* Fast forward, fast rewind, previous track, next track, play, pause, stop\u003cbr\u003e* Mute function, screen display of single track and full disc playback duration\u003cbr\u003e\u003cbr\u003eMulti-Chip Coordinated Operation\u003cbr\u003e* The central CPU chip coordinates the decoding chip, driver chip, internal storage chip, display control chip and other components to coordinate computing and control across all functions.\u003cbr\u003e* Storage Chip: M12L64164A\u003cbr\u003e* Driver IC Chip: HD5888A\u003cbr\u003e* Crystal Oscillator: JHX 27.000\u003cbr\u003e* Vacuum Fluorescent Display Control Chip: PT6312BLQ (manufactured by Taiwan PTC)\u003cbr\u003e* Operational Amplifiers: 2×JRQ4558, JRC4558D, 2×JRC5532D\u003cbr\u003e* Voltage Regulators: LM2576, L7809CV, L7909CV\u003cbr\u003e* Rectifier Bridge \u0026amp; Rectifier Diode: KBL406\u003cbr\u003e* Capacitors: Japanese Capacitors for NOBLE\u003cbr\u003e\u003cbr\u003eDual Operational Amplifiers\u003cbr\u003e* Carefully selected five audiophile-grade high-precision dual operational amplifiers including JRC5532D.\u003cbr\u003e* Each dual op amp contains 2 audio operation units with superior performance.\u003cbr\u003e* Five op amps provide the equivalent processing power of 10 audio operation units running simultaneously for purer sound.\u003cbr\u003e* Independent op amp circuits for digital and analog channels with zero mutual interference.\u003cbr\u003e* Separate op amp circuits for left and right analog audio channels for high channel separation.\u003cbr\u003e* Features low distortion, low noise and high signal-to-noise ratio.\u003cbr\u003e* Powerful operational amplifier configuration delivers exquisite, mellow tone for the player with balanced performance across low, mid and high frequencies.\u003cbr\u003e\u003cbr\u003eHigh-Quality Crystal Oscillator\u003cbr\u003e* Emits high-precision clock frequencies\u003cbr\u003e* Provides fundamental clock signals for the entire device system\u003cbr\u003e* Synchronizes the input decoding and output processes of audio signals\u003cbr\u003e* Restores every subtle sound detail with perfect audio frequency synchronization\u003cbr\u003e\u003cbr\u003eVoltage Stabilization, Rectification \u0026amp; Filter Power Supply System\u003cbr\u003e* Complete DC voltage stabilization and filter power supply system\u003cbr\u003e* The power system consists of a 35W power transformer, 4 high-speed rectifier diodes, 3 high-precision voltage regulators, 1 rectifier bridge, 6 imported capacitors and other components. It forms a power supply system that suppresses electric current ripples, safeguarding high-fidelity audio performance from the power source.\u003cbr\u003e* It is an integrated power system assembled from a power transformer, rectifier circuit, filter circuit and voltage stabilization circuit.\u003cbr\u003e\u003cbr\u003eHigh-Power Pure Copper Toroidal Transformer\u003cbr\u003e* Abundant reserve power\u003cbr\u003e* The CD player is powered by a high-power 35W toroidal transformer. Cooperating with the voltage stabilization and rectification circuit, it supplies independent power to digital and analog circuits separately. It delivers ample reserve power and achieves more efficient and reasonable power distribution, enabling stable reproduction of sound dynamics, details, texture and layers.\u003cbr\u003e\u003cbr\u003eRectifier Bridge\/Rectifier Diodes\u003cbr\u003e* Advanced power control technology for electric energy conversion\u003cbr\u003e* Equipped with 1 rectifier bridge and 4 high-speed rectifier diodes\u003cbr\u003e* High-speed rectification transmission rapidly provides sufficient voltage for circuits\u003cbr\u003e* The rectifier circuit not only serves as the power source of the CD player, but also reduces voltage ripples to deliver steadier and cleaner sound.\u003cbr\u003e\u003cbr\u003eCapacitor Purification \u0026amp; Filtering for Pure, Delightful Sound\u003cbr\u003e* Purification and filtering to generate pristine audio waves\u003cbr\u003e* Adopts imported Japanese capacitors for NOBLE\u003cbr\u003e* Boasts outstanding filtering characteristics, supplying abundant power and professional filtering design for the disc player. It renders high frequencies more transparent with wide frequency response, low frequencies deep and powerful, and delivers extraordinary sound dynamics.\u003cbr\u003e\u003cbr\u003eMultiple High-Precision Voltage Regulators\u003cbr\u003e* Deliver stable sound via voltage stabilization circuits, equipped with 3 high-precision voltage regulators\u003cbr\u003e* Features high voltage stabilization accuracy and fast response speed, with excellent absorption of power supply ripples. It makes the sound of the player transparent and vivid, as clear as spring water.\u003cbr\u003e\u003cbr\u003eAnti-Shock \u0026amp; Anti-Vibration Movement\u003cbr\u003e* Carefully selected brand movement from UOTANG, featuring a larger and more stable pickup assembly\u003cbr\u003e* The player is fitted with imported laser pickup assemblies for Sanyo.\u003cbr\u003e* Metal base with reliable shock absorption design for superior stability.\u003cbr\u003e* It keeps the movement steady during CD playback with strong anti-damage and anti-interference performance.\u003cbr\u003e* It offers powerful disc error correction, high reading precision and fast response speed to reproduce richer sound details.\u003cbr\u003e\u003cbr\u003eAluminum Alloy Front Panel \u0026amp; Remote Control\u003cbr\u003e* Exquisite mechanical aesthetics\u003cbr\u003e* The front panel is made of 5mm thick solid aluminum sheet\u003cbr\u003e* Subjected to JI anodized matte finishing to maintain a brand-new appearance long-term\u003cbr\u003e* Comes with a full aluminum alloy remote control\u003cbr\u003e* The remote features a smooth, solid body with delicate matte texture.\u003cbr\u003e\u003cbr\u003eHigh-Fidelity Headphone Jack Output\u003cbr\u003e* 6.5mm stereo 3-pole headphone output jack, compatible with 6.5mm dual-channel HiFi headphones, and supports adapter connection to 3.5mm dual-channel headphones. It is equipped with an independent headphone volume adjustment knob.\u003cbr\u003e\u003cbr\u003eHigh-Definition Display Screen\u003cbr\u003e* VFD vacuum fluorescent display with multi-color output, high brightness, long service life and strong anti-interference capability.\u003cbr\u003e* Matched with Taiwan PTC display control chip, the screen presents stable, efficient and clear playback status of the CD player.\u003cbr\u003e\u003cbr\u003eGrand Appearance \u0026amp; Premium Configuration\u003cbr\u003e* It works with UOTANG MK9200 pure preamplifier, UOTANG MK9600 pure power amplifier, and UOTANG MT909 digital audio player decoder\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2. MT903 Specifications:\u003c\/b\u003e\u003cbr\u003e* Appearance Dimensions: 430mm Width × 100mm Height × 350mm Depth (excluding binding posts)\u003cbr\u003e* Front Panel Main Control Buttons: Previous Track\/Next Track\/Play \u0026amp; Pause\/Stop\/CD Tray In\/Tray Eject\/Headphone Volume\u003cbr\u003e* Core Remote Control Functions: Numeric Track Selection\/Disc Repeat\/Single Track Repeat\/Random Playback\/CD Tray In\/Tray Eject\u003cbr\u003e* Supported Disc Formats: CD, HQCD, HQ II, ADMS, CD-R, etc.\u003cbr\u003e* Supported Disc Sizes: 12cm\/8cm Discs\u003cbr\u003e* Analog Output: RCA\/Balanced\u003cbr\u003e* Digital Output: Optical\/Coaxial\u003cbr\u003e* Output Level: 2Vrms\u003cbr\u003e* Frequency Response: 20Hz to 20KHz\u003cbr\u003e* S\/N Ratio: 125dB\u003cbr\u003e* Total Harmonic Distortion: 0.0008%\u003cbr\u003e* Dynamic Range: 112dB\u003cbr\u003e* Total Power Consumption: \u0026lt;20W\u003cbr\u003e* Power Supply Voltage: AC220V~50Hz\u003cbr\u003e* Unit Weight: 5.4KG (Net Weight)\u003cbr\u003e* Remote Control Type \u0026amp; Power Supply: Infrared Pulse\/DC3V, AA Dry Battery\u003cbr\u003e\u003cb\u003e\u003cspan\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0); background-color: rgb(255, 255, 0);\"\u003eMT909 DAC Digital Audio Player (Optional):\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e1. Features:\u003c\/b\u003e\u003cbr\u003eFull Functional Coverage, Surpassing-Grade Decoding\u003cbr\u003e* Immersive authenticity, fully unleashed listening experience\u003cbr\u003e* Achieve a qualitative leap in your audio quality\u003cbr\u003e\u003cbr\u003eUOTANG MT909 Digital Audio Player \u0026amp; Decoder\u003cbr\u003e* Hard Drive\/U-Disk Lossless Playback\u003cbr\u003e* Bluetooth 5.0 Wireless Connection\u003cbr\u003e* ES9039 DAC Architecture, Time Domain Jitter Eliminator\u003cbr\u003e* 2×RCA \u0026amp; Balanced Output\u003cbr\u003e* Optical\/Coaxial \u0026amp; USB-PC Input\u003cbr\u003e* Native Hardware Decoding for DSD512 \u0026amp; PCM 32BIT\u003cbr\u003e* Multiple High-Grade Op-Amps: OPA1642 + OPA2604\u003cbr\u003e* XU316 USB Digital Interface for XMOS\u003cbr\u003e* Convenient Dual Control: Mobile APP + Remote Control\u003cbr\u003e* Ultra-Low Distortion THD+N\u003cbr\u003e* OTG High-Resolution Transmission for Mobile Phones \u0026amp; Pads\u003cbr\u003e* Full Volume Control Output, Directly Connectable to Power Amplifier\u003cbr\u003e\u003cbr\u003eComprehensive Function Coverage and Massive Performance Upgrade\u003cbr\u003e* MT909 - full refresh of functions \u0026amp; listening experience\u003cbr\u003e* With comprehensive function coverage and superior decoding capability, MT909 becomes your premium audio source upgrade choice\u003cbr\u003e* Built on audiophile-grade component configuration, centered on a well-matched decoding and operational amplifier solution\u003cbr\u003e* It delivers superior decoding performance to bring a qualitative leap to your audio quality\u003cbr\u003e* Compatible with U-disk, hard drive, Bluetooth, mobile phone, computer and more for wide functional coverage\u003cbr\u003e* It supports nearly all mainstream functions of Hi-Fi audio sources (except CD playback)\u003cbr\u003e* The mature ESS9039 + decoding for XMOS and operational amplifier solution greatly boosts overall performance\u003cbr\u003e* Dual control via mobile APP and remote control enables effortless operation\u003cbr\u003e* Diverse input and output systems support multi-path transmission of audio signals\u003cbr\u003e* High-Quality Input System: Bluetooth 5.0, Lossless USB, Coaxial, Optical, USB-PC\u003cbr\u003e* Complete Output System: 2×RCA Analog Output, Balanced Output, Full Volume Control Output\u003cbr\u003e* Rich and comprehensive input and output options make it widely compatible with all types of your audio equipment\u003cbr\u003e* The decoding chip features 32Bit\/384Khz sampling precision and a signal-to-noise ratio up to 129dB\u003cbr\u003e* Total harmonic distortion as low as -120dB, supports decoding of 384k PCM and DSD512\u003cbr\u003e* Supports OTG connection playback with mobile phones, allowing your phone to serve as an ultra-high-resolution audio source device\u003cbr\u003e* USB-PC interface support enables external sound card decoding for computer audio\u003cbr\u003e* Global output volume control allows it to work as a preamplifier and directly connect to post-stage power amplifiers\u003cbr\u003e* Dual Rectifier Design: Separated rectification for input \u0026amp; output; Separated rectification for digital \u0026amp; analog circuits\u003cbr\u003e* High-precision crystal oscillators output ultra-accurate clock frequencies, equipped with multiple audiophile-grade operational amplifiers\u003cbr\u003eIndependent relay protection for each audio channel safeguards the audio output of the decoder\u003cbr\u003e* Unified visual matching exterior design for all products under the UOTANG brand system\u003cbr\u003e* MT909 strictly optimizes every performance and functional parameter\u003cbr\u003e* MT909 delivers precise decoding and a full spectrum of functions. It stands as an outstanding representative integrating cutting-edge technology and premium quality within the UOTANG product line.\u003cbr\u003e\u003cbr\u003eDeliver a Qualitative Transformation to Your Audio Quality\u003cbr\u003e* The one-stop premium choice for your Hi-Fi audio source\u003cbr\u003e* This Hi-Fi grade UOTANG MT909 digital audio player and decoder adopts the unified coordinated appearance design of all products under the UOTANG brand system, blending technological aesthetics with premium texture.\u003cbr\u003e* It inherits UOTANG's home-oriented design philosophy, being developed around two core demands: functional usability and superior performance, to satisfy your various Hi-Fi audio source usage scenarios from multiple dimensions.\u003cbr\u003e* In terms of functionality, the MT909 is equipped with comprehensive input and output interfaces to remove restrictions on your audio signal transmission. Except for CD playback, it supports nearly all mainstream Hi-Fi audio source usage scenarios. Meanwhile, it features dual control via remote controller and mobile APP for more convenient operation.\u003cbr\u003e* For decoding performance, the MT909 utilizes chips and operational amplifiers with advanced specifications in sampling precision, signal-to-noise ratio, total harmonic distortion and other metrics to conduct physical hardware decoding. With carefully arranged circuit layouts and premium component selections across all modules, the MT909 reproduces richer sound details and authentic timbre, fully safeguarding your audio quality. It pairs best with high-end Hi-Fi power amplifiers and audio systems, as entry-level devices may fail to unlock its full outstanding performance potential.\u003cbr\u003e* We avoid obscure technical jargon, and simply present the MT909's dual strengths in functions and performance in plain language. Whether you intend to upgrade your existing audio source or seek a one-stop premium audio source from scratch, the MT909 is a high-end Hi-Fi audio decoder worthy of your purchase.\u003cbr\u003e* The MT909 stands out as your upgrade pick for Hi-Fi audio source devices, thanks to its full-range function coverage and breakthrough superior decoding capability.\u003cbr\u003e\u003cbr\u003ePrecise \u0026amp; Accurate Decoding, Purify Audio At The Source\u003cbr\u003e* Comprehensive full-featured functions, one unit for multiple purposes\u003cbr\u003e* The MT909 delivers source-purified decoding performance: Built upon audiophile-grade component configuration, centered on a well-matched decoding and op-amp coordination scheme. It achieves breakthrough superior decoding to bring a qualitative leap to your audio quality\u003cbr\u003e* The MT909 realizes multi-purpose utility through abundant practical functions: It supports nearly all mainstream functions of Hi-Fi audio sources (except CD disc playback)\u003cbr\u003eDiverse input and output interfaces enable flexible transmission of all types of audio signals\u003cbr\u003e\u003cbr\u003eA Meticulously Crafted Upgrade Choice For Your Audio System\u003cbr\u003e* This Is A Deeply Refined Masterpiece Of Audio Equipment Developed By Our Team And Me\u003cbr\u003e* The mature ESS9039 + decoding for XMOS and op-amp coordination solution greatly boosts overall performance. Compatible with U-disk, hard drive, Bluetooth, mobile phone, computer and more for full-range function coverage. \u003cbr\u003e* Dual control via mobile APP and remote controller lets you operate the device with effortless taps\u003cbr\u003e* Unified coordinated exterior design across all UOTANG brand products delivers extraordinary visual appeal\u003cbr\u003e\u003cbr\u003eExquisitely Restored Sound Details, Authentic And Sincere Sound Reproduction\u003cbr\u003e* Achieve a qualitative transformation to your audio quality\u003cbr\u003e* Adopts dual rectifier design with separated rectification for digital and analog circuits to eliminate mutual interference and improve channel separation\u003cbr\u003e* Equipped with high-precision crystal oscillators to generate accurate clock frequencies, synchronizing audio output and decoding processes\u003cbr\u003e* The MT909 reproduces ultra-fine sound details\u003cbr\u003e* Features 32-bit HyperStream II DAC architecture and time-domain jitter eliminator\u003cbr\u003e* It delivers a dynamic range up to 129dB and total harmonic distortion as low as -120dB\u003cbr\u003e* The MT909 recreates immersive, live-like sound authenticity\u003cbr\u003e* They also form the solid foundation for transmitting superior audio signals to your power amplifier\u003cbr\u003e\u003cbr\u003eFull Coverage of Hi-Fi Audio Source Functions\u003cbr\u003e* The MT909 supports nearly all usage modes and functions except CD disc playback. While maintaining its core performance, it is equipped with abundant practical and user-friendly functions.\u003cbr\u003e* High-Grade Receiving System: Bluetooth 5.0, Lossless USB, Coaxial, Optical, USB-PC\u003cbr\u003e* Complete Output System: 2×RCA Analog Output, Balanced Output, Full Volume Control Output\u003cbr\u003e* Convenient Dual Control System: Remote Control + Mobile APP Control\u003cbr\u003e\u003cbr\u003eRefresh Your Listening Experience With Rich Sound Details And Authentic Timbre\u003cbr\u003e* The MT909 adopts the ESS9039 decoding chip, with a sampling precision of 32Bit\/384Khz. It features a signal-to-noise ratio up to 129dB and total harmonic distortion (THD+N) as low as -120dB.\u003cbr\u003e* Moreover, it supports native hardware decoding of 384k PCM and DSD512 formats.\u003cbr\u003e* Matched with 2 pieces of OPA1642 op-amps plus one OPA2604 op-amp, it forms an excellent coordinated solution of decoder and operational amplifiers.\u003cbr\u003e* The abundant sound details and authentic timbre it creates deliver immersive and fully unlocked genuine listening experience.\u003cbr\u003e\u003cbr\u003eHigh-Resolution and Wall-Penetrating Bluetooth\u003cbr\u003e* The UOTANG MT909 decoder supports multiple mainstream Bluetooth transmission protocols. It achieves wide compatibility and connection with mobile phones, tablets, CD players, power amplifiers, computers and more devices.\u003cbr\u003e* It supports a maximum resolution of 16bit depth and 48kHz sampling rate. It enables Bluetooth 5.0 transmission for your power amplifiers, active speakers, mixing consoles and other audio equipment.\u003cbr\u003e* Humanized functions include automatic Bluetooth connection and automatic memory of multiple paired Bluetooth device names.\u003cbr\u003e* Equipped with a high-gain Bluetooth antenna, it delivers wall-penetrating Bluetooth signal capability.\u003cbr\u003e* It supports multi-room wall-crossing signal coverage for more stable transmission and lower signal loss.\u003cbr\u003e\u003cbr\u003eLossless USB, Supports U-Disk\/Hard Drive Playback\u003cbr\u003e* Master tap grade audiophile Hi-Fi sound quality\u003cbr\u003e* Powerful reading and playback capability, enabling free playback of massive lossless audio files stored in your hard drive.\u003cbr\u003e* Through fully coordinated hardware decoding workflow: Direct USB Read → DAC Hardware Decoding → Op-Amp Output\u003cbr\u003e* The MT909 delivers digital reading and parsing performance nearly comparable to master tape equipment.\u003cbr\u003e* Supports lossless formats including WAV, APE, FLAC, WMA and more, as well as folder management.\u003cbr\u003e* Max support for 24Bit\/48kHz stereo lossless format decoding and playback.\u003cbr\u003e* Dual convenient operation modes: Song selection via Mobile APP + Song selection via Remote Control\u003cbr\u003e* Supports U-Disk up to 256GB\u003cbr\u003e* Supports Hard Drive up to 2TB\u003cbr\u003e* Folder browsing supported\u003cbr\u003e\u003cbr\u003eMobile APP + Remote Controller Ultra-Convenient Control System\u003cbr\u003e* Mobile APP Control: Deeply optimized for ease of use to realize smarter control. After connecting the MT909 via Bluetooth through the mobile APP (download Bluetooth Toolbox),\u003cbr\u003eyou can freely select and control tracks on your phone. Play any songs stored in U-disk or hard drive on demand, and support selecting tracks from categorized music folders of various genres. (iOS systems do not display folder lists, but all songs inside folders will be fully shown.)\u003cbr\u003e* Remote Controller Control: The MT909 comes with a dedicated remote controller for convenient remote operation. Most playback operations can be completed directly on the remote controller: Audio source switching\/digital track selection\/single track repeat\/all tracks repeat\/folder repeat\/shuffle playback, etc.\u003cbr\u003e* The ultra-convenient dual control system of MT909 lets you freely select and play all your audio tracks as you wish.\u003cbr\u003e\u003cbr\u003eMobile OTG Connection Playback Turns Your Phone Into An Ultra-High-Resolution Audio Source Device\u003cbr\u003e* This is an excellent wired connection solution for linking mobile phones or tablets to the decoder. (Your mobile phone\/tablet can function as an internet-connected device to play local music stored on itself.) It solves the issue of lossy audio transmission when playing ultra-high-resolution audio on portable devices such as phones and tablets. It delivers superior sound performance and quality compared to traditional transmission modes including wireless Bluetooth and headphone jack.\u003cbr\u003e* Connect your mobile phone to the MT909's USB-PC interface via a OTG cable. It conducts bottom-layer hardware decoding for audio files stored on your portable device, turning your phone into a digital transport. It satisfies audiophiles' demand for high-quality decoded audio output when playing music via mobile phones or tablets.\u003cbr\u003e* Multi-system compatibility: Supports HarmonyOS, iOS, Android and other mainstream mobile operating systems. Supports multiple audio sampling rates, including PCM 384kHz and DSD512Fs.\u003cbr\u003e\u003cbr\u003eUSB-PC Interface \u0026amp; Support: PC USB Sound Card Function\u003cbr\u003e* Equipped with external sound card USB digital interface for XMOS and the 3rd-generation 16-core XU316 chip. Via the USB-PC input port, your computer audio can be decoded by this external sound card. It easily connects your PC with the DAC chip to deliver bottom-layer hardware decoding for ultra-high-resolution audio, supporting decoding and transmission of DSD and PCM high-resolution audio formats.\u003cbr\u003e* The MT909 outputs high-fidelity audio signals and can serve as an external sound card for computers. It remedies the drawback that built-in PC sound cards cannot process high-definition audio decoding, meeting audiophiles' demands for premium decoded audio output when playing music via computers.\u003cbr\u003e* Compatible with multiple computer operating systems: Windows, Mac OS X, iOS, Linux, Android platforms are all supported. Supports a full range of audio sampling rates, including PCM 32Bit\/384kHz and DSD512Fs.\u003cbr\u003e\u003cbr\u003eHigh Sampling Rate Decoding For DSD And PCM\u003cbr\u003e* DSD and PCM store digital audio signals at sampling rates higher than standard CD formats, delivering far superior sound performance. Thanks to the ultra-high sampling count, the reproduced audio waveform becomes extremely smooth, closely matching the analog waveform of the original sound.\u003cbr\u003e* It also achieves ultra-low quantization noise and an exceptional signal-to-noise ratio, making playback sound much more authentic to the source recording. \u003cbr\u003e* DSD (Direct Stream Digital): Supports DSD 512Fs (Not available for U-Disk playback)\u003cbr\u003e* PCM (Pulse Code Modulation): Supports PCM 32Bit\/384Khz (Not available for U-Disk playback)\u003cbr\u003e\u003cbr\u003eSimplicity Mastering Complexity\u003cbr\u003e* More Streamlined, More Modern Youthful Style\u003cbr\u003e* UOTANG Brand Black \u0026amp; Gold Color Scheme: Blends technological texture and fashionable aesthetics\u003cbr\u003e* Exquisite Matte Surface With Superior Tactile Feel\u003cbr\u003e\u003cbr\u003eFull-Range Volume Control For All Outputs (Usable As A Preamplifier)\u003cbr\u003e* The UOTANG MT909 adopts software-based control over the DA decoding chip. It delivers full coverage volume control for 2 groups of RCA outputs and 1 group of balanced outputs. \u003cbr\u003e* It can be directly connected to a power amplifier without sound quality degradation even at low volume levels.\u003cbr\u003e\u003cbr\u003eBalanced Output With Lower Distortion - Effective Anti-Interference For Purer Sound\u003cbr\u003e* Equipped with Hi-Fi grade standard XLR balanced output connectors, a hallmark of high-end decoders. It expands sound dynamic range, lowers background noise, and produces fuller, clearer and purer audio. It also excels at reproducing subtle sound details.\u003cbr\u003e\u003cbr\u003eSeparated Rectification For Audio Input \u0026amp; Output\u003cbr\u003e* Dual rectifier design features separated rectification for input \u0026amp; output circuits, as well as separated rectification for digital \u0026amp; analog circuits.\u003cbr\u003e* The circuits operate without mutual interference, improving separation of delicate sound details.\u003cbr\u003e\u003cbr\u003eComprehensive Full Set Of Input \u0026amp; Output Interfaces\u003cbr\u003e* Compatible with your wide range of audio equipment\u003cbr\u003e*  Achieve input and output connections with numerous devices via assorted connecting ports and cables.\u003cbr\u003e* Compatible device list: Mobile phones, desktops, laptops, tablets, televisions, projectors, power amplifiers, preamplifiers, DVD players, CD players, active speakers, subwoofers, U-disks, hard drives and more.\u003cbr\u003e\u003cbr\u003eFull Functional Coverage, Surpassing-Grade Decoding\u003cbr\u003e* Immersive authenticity, fully unleashed listening experience\u003cbr\u003e* Deliver a qualitative leap to your audio quality\u003cbr\u003e\u003cbr\u003e\u003cb\u003e2. More Details:\u003c\/b\u003e\u003cbr\u003eThe MT909 With High-Precision Voltage Regulation Maintains Stable Current Supply\u003cbr\u003e* Electricity is the foundation of sound. The MT909 adopts high-precision three-terminal voltage regulation to guarantee steady current across the whole unit, delivering rock-solid sound performance.\u003cbr\u003e\u003cbr\u003eHigh-Quality Crystal Oscillator Outputs Ultra-Accurate Clock Frequencies\u003cbr\u003e* The clock crystal oscillator supplies fundamental clock signals for the entire device system. It enables synchronized operation of audio input, decoding and output modules, revealing every subtle sound detail and achieving perfect audio synchronization.\u003cbr\u003e\u003cbr\u003eThree Audiophile-Grade Operational Amplifiers With Interchangeable Design\u003cbr\u003e* Matched with the ESS9039 decoding chip, the circuit employs 2 pieces of OPA1642 plus 1 piece of OPA2604 op-amps, forming an outstanding coordinated solution of decoder and operational amplifiers.\u003cbr\u003e\u003cbr\u003eOverload Protection Relays As Audio Output Safeguard\u003cbr\u003e* Independent relay protection is deployed for each audio channel to secure the audio output of the decoder, and fully protect the input circuit of your power amplifier.\u003cbr\u003e\u003cbr\u003eRemote Control With Smooth Button Texture, Instant Response\u003cbr\u003e* Boasting premium texture and comfortable hand grip, it supports long-distance infrared remote control. The buttons feature delicate tactile feedback and rapid response, with comprehensive built-in functions for effortless operation.\u003cbr\u003e\u003cbr\u003eLarge Clear Status Display Screen With Minimalist Layout For Instant Readout\u003cbr\u003e* The exquisite display screen is seamlessly integrated into the front panel housing. The high-definition LED screen shows real-time working status data, letting you fully grasp the decoder's operating conditions at a glance.\u003cbr\u003e\u003cbr\u003e\u003cb\u003e3. Specifications:\u003c\/b\u003e\u003cbr\u003e* Overall Dimension: Width 330mm x Depth 250mm x Height 65mm (Including Base)\u003cbr\u003e* Bluetooth: Version 5.0 (Supports APP Connection \u0026amp; Control)\u003cbr\u003e* USB: Max support for 256G U-Disk, 2T Portable Hard Drive\u003cbr\u003e* USB-PC: XU316 3rd Generation for XMOS\u003cbr\u003e* Net Weight of Unit: 2.6 KG\u003cbr\u003e* Input Interfaces: USB-PC (Computer\/Mobile Phone\/Pad), Coaxial Input, Optical Input\u003cbr\u003e* Output Interfaces: 2 × RCA, 1 × Balanced Port\u003cbr\u003e* Sampling Rate: Max support for 32Bit\/384KHz, DSD512Fs (Not supported by U-Disk playback)\u003cbr\u003e* THD+N: -120dB\u003cbr\u003e* Dynamic Range: 130dB\u003cbr\u003e* Output Impedance: 16Ω — 300Ω\u003cbr\u003e* Signal-to-Noise Ratio: 130dB\u003cbr\u003e* Output Level: 3.6V\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0); background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePacking List (Depending on Selected Configuration):\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp:\u003cbr\u003e* 2 x Speakers\u003cbr\u003e* 1 x Set of Tube Amp\u003cbr\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp + MT903 CD Player:\u003cbr\u003e* 2 x Speakers\u003cbr\u003e* 1 x Set of Tube Amp\u003cbr\u003e* 1 x Set of CD Player\u003cbr\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp + MT909 DAC:\u003cbr\u003e* 2 x Speakers\u003cbr\u003e* 1 x Set of Tube Amp\u003cbr\u003e* 1 x Set of Decoder\u003cbr\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp + MT909 DAC + MT903 CD Player:\u003cbr\u003e* 2 x Speakers\u003cbr\u003e* 1 x Set of Tube Amp\u003cbr\u003e* 1 x Set of Decoder\u003cbr\u003e* 1 x Set of CD Player\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0); background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackaging Details (Depending on Selected Configuration):\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp:\u003cbr\u003e* Package weight: 40.5kg\u003cbr\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp + MT903 CD Player:\u003cbr\u003e* Package weight: 47.3kg\u003cbr\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp + MT909 DAC:\u003cbr\u003e* Package weight: 44.9kg\u003cbr\u003e\u003cbr\u003eT602 Speakers + MK8800 Tube Amp + MT909 DAC + MT903 CD Player:\u003cbr\u003e* Package weight: 51.7kg\u003c\/p\u003e","brand":"UOTANG","offers":[{"title":"T602 Speakers + MK8800 Tube Amp","offer_id":41103083339825,"sku":"103112","price":2731.01,"currency_code":"USD","in_stock":true},{"title":"T602 Speakers + MK8800 Tube Amp + MT903 CD Player","offer_id":41103083372593,"sku":"103113","price":3161.04,"currency_code":"USD","in_stock":true},{"title":"T602 Speakers + MK8800 Tube Amp + MT909 DAC","offer_id":41103083405361,"sku":"103114","price":3171.14,"currency_code":"USD","in_stock":true},{"title":"T602 Speakers + MK8800 Tube Amp + MT909 DAC + MT903 CD Player","offer_id":41103083438129,"sku":"103115","price":3601.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/103115-1.jpg?v=1783048824","url":"https:\/\/www.thanksbuyer.com\/it\/products\/uotang-d998-set-t602-150w-2-way-speakers-mk8800-kt88-45wx2-tube-amp-mt909-dac-mt903-cd-player","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}