UOTANG MK9700 24Wx2 Vacuum Tube Integrated Amplifier Hifi Single-Ended Class A Tube Amp with 300B Pushing 845

Features:
UOTANG Full-Range Master MK9700 Split Vacuum Tube Power Amplifier
* Split Vacuum Tube Amplifier
* Custom 300B Elegant Tube Tone
* Custom 845 Majestic Tube Sound
* Five Major Power Supply Systems
* Independent "Power Station"
* Three Core Components
* Dual-channel Separate Power Supply
* Single-ended Pure Class A
* 14-Capacitor Matrix
* 8-Channel Independent Voltage Stabilization and Rectification
* Russian Imported Tubes
* High-end Coupling Capacitors
* Dual Timbre Mode Output
* Large Integrated Sound Pressure Meter
* Usable as Pure Power Amplifier
* Tempered Glass + Paint Finish
* CLC Filter System
* Carbon Fiber Binding Posts

Break Through Traditional Limitations and Create the Full-Range Master
* 300B delivers precise expressive power
* 845 delivers explosive energy sense
* Carrier of core components
* Surpasses transistor control capability
* Dual sound modes
* Independent "power station" split power supply
* It extends the vocal frequency band advantages of tube amplifiers to the full frequency range. It retains the sonic characteristics of vacuum tubes while refining the control capability of transistors, enabling accurate and emotional restoration of all sound styles across the full frequency spectrum. Equipped with accumulated Hi-End grade technologies, core acoustic components and upgraded architecture, MK9700 is a power amplification system that meets multi-frequency audio listening demands.

Single-ended Pure Class A Amplifier with 300B Elegant Tube Tone, 845 Majestic Tube Sound
* UOTANG Full-Range Master MK9700 adopts the 300B+845 vacuum tube combination, featuring high linear amplification and strong power output, dominated by warm even-order harmonics. Multiple tubes shape sound, presenting smooth tone like spring water and stable dynamics like solid stone. Matched with MK9700's exclusive independent power station split high-voltage power supply system, low/high voltage separated power supply provides powerful energy support and high linear pure sound restoration.

Powerful Control Surpasses Transistor Power Amplifiers
* Full-Range Master MK9700 delivers both firmness and softness with magnificent power through technological innovation. It adopts a split power supply design equipped with 3 power transformers and a 14-capacitor matrix. Its power reserve far exceeds ordinary tube amplifiers, offering transient response as fast as transistor amplifiers to resolve insufficient energy output. Low-inductance transformers eliminate loose low-frequency performance, while high linear amplification balances distortion and speed. Ultimately, MK9700 combines the smooth, mellow and sweet tone of tube amplifiers with the precise control capability of transistor amplifiers. Whether reproducing explosive passages of large-scale symphonies or handling complex rhythms of electronic music, Full-Range Master MK9700 can drive speakers to deliver vivid sound performance, refreshing your perception of the driving limit of vacuum tube amplifiers. This is the core confidence that empowers UOTANG MK9700 to bear the title of Full-Range Master.

Independent "Power Station" Split Power Supply Base Station Built with Five Major Power Supply Systems
* The split power supply base station serves as the energy core of UOTANG Full-Range Master MK9700. MK9700 is powered by three power transformers in total. Two toroidal transformers supply high voltage for vacuum tubes, and one independent high-power EI transformer delivers low voltage power for tube filaments. Large-capacity matrix capacitors work alongside to store energy and filter noise for the whole unit. The split high-voltage power supply boasts three core advantages: ample power reserve, rapid dynamic response, and clean noise-free separated high-low voltage power supply. It fully unlocks the potential of the 300B driving 845 sonic combination and fixes the weak dynamic performance flaw of traditional tube amplifiers. It handles delicate vocal whispers and explosive symphonic epics with ease, meeting all transient response demands of the unit.

Dual-Channel Separated Power Supply Architecture, Upgraded Standard for Tube Amplifier Power Supply
* The high-voltage power supply of MK9700 adopts an independent split high-voltage power base station, which is physically isolated from the low-voltage (filament) power supply of the main unit to avoid crosstalk interference from high-voltage ripples. It solves electromagnetic interference and mutual component coupling issues of traditional shared power supply designs. The separation between high-voltage power supply (anode high voltage) and low-voltage filament power supply (cathode heating) also marks a leap from conventional power supply to Hi-End grade performance. Significant improvements are achieved in sound purity, dynamic performance and equipment stability. MK9700 reshapes the power supply framework of vacuum tube devices and upgrades the industry power supply standard.

Energy Reserve Transformer System, with High Power, High Rigidity, Wide Frequency Response, Infuses Magnificent Power into Sound
* The power base station of MK9700 is fitted with two Class A iron-core high-power toroidal transformers wound with high-temperature resistant polyimide enameled wire, delivering a total peak power of over 1000W. The main unit carries one EI filament transformer that provides zero-fluctuation stable power supply and eliminates AC sound modulation. Fine details remain clearly distinguishable during playback without stray noise in soft sound segments. Three transformers implement separated high-low voltage power supply and form the core power reserve engine. Sufficient power reserve, precise energy release and wide-band interference-free transmission enable the 300B driving 845 sonic matching to generate powerful and bold dynamics and control capacity. This solid foundation makes MK9700 the Full-Range Master. Its abundant stored power reserve is capable of coping with all complex music scenarios.

Energy Reserve Matrix Capacitor System, with Large Capacity, Low Internal Resistance, Powerful Foundation, Enables Lightning-Fast Transient Sound Response
* The high-voltage power filter circuit of MK9700 adopts 14 pieces of 500V/390μF high-voltage capacitors with a total capacity of 5460μF to form the filter circuit, featuring low internal resistance and low ripple characteristics. It delivers stable and sufficient power supply for vacuum tubes and guarantees unrestrained dynamic performance of MK9700. The 5460μF large-capacity capacitor matrix acts as the energy reserve warehouse of MK9700, supplying instantaneous burst energy for 300B & 845, while multi-stage filtering purifies the power supply. It achieves deeper low-frequency extension, more transparent high-frequency performance and more solid dynamic output, which forms the core strength that makes MK9700 the Full-Range Master. Its outstanding low-frequency performance surpasses transistor amplifiers and breaks the stereotype of weak power output from tube amplifiers.

Three-Stage Filtering Improves Power Supply Purity
* MK9700 applies CLC filtering technology, equivalent to equipping sound with a high-purity filter. The perfect combination of choke coils and capacitor matrices converts municipal power into pure electric current. With multi-stage filtering and low internal resistance design, the CLC system not only provides clean power supply for vacuum tubes but also renders every sonic detail distinctly audible. Whether you are a classical music enthusiast pursuing ultimate purity or a fan of rock and symphony craving dynamic impact, the high-purity CLC power filtering system of Full-Range Master MK9700 allows you to perceive musical details you have never noticed before.

8-Channel Independent Voltage Stabilization & Rectification System: Precise Coordination via Power Supply Matrix, Zoned Power Supply for Accurate Performance Empowerment
* MK9700 is equipped with 8 independent voltage-stabilized power supplies that implement zoned power supply for input, amplification, protection, control and other modules through distributed management, realizing precise coordination comparable to a power symphony orchestra.

Three Core Components of MK9700: Import Custom Vacuum Tubes, Hi-End Coupling Capacitors and Hi-End Output Transformers
* The three core components form the foundation of Hi-End grade sound quality for MK9700. Russian imported tubes customized by UOTANG deliver warm harmonics to MK9700. Hi-End grade European and American coupling capacitors achieve precise detail transmission and stylistic expression. Japanese EI-type output transformers provide wide-frequency drive to construct premium Hi-End output transformers. These three core components together shape the sonic formula of MK9700. Whether you seek the unique tonal charm of tube amplifiers or Hi-End resolution and dynamics, Full-Range Master MK9700 transforms music from mere auditory sensation into immersive perception.

Imported + UOTANG Custom Vacuum Tubes
* MK9700 adopts Russian imported 12AX7EH vacuum tubes for the independent preamplifier circuit. Custom-grade 5U4G rectifier tubes are used for tube rectification to deliver bright and transparent sound. Russian 6SN7EH vacuum tubes handle voltage amplification for MK9700, followed by driving via UOTANG custom 300B vacuum tubes. UOTANG custom 845 vacuum tubes perform pure Class A power amplification.

Hi-end Grade Coupling Capacitors
* From preamplifier circuit to voltage amplification stage, current drive stage and power amplification stage, a total of 2 original American MIT RTX series capacitors and 6 original German MCAP (for MUNDORF) capacitors are deployed between all circuit stages. Two types of capacitors with distinct sonic characteristics and performance work in tandem for fine sound tuning.

Hi-end Grade Output Transformer
* MK9700 is fitted with one wide-frequency-response EI-type output transformer per channel, two units in total. They are wound with QZY polyimide enameled wire that withstands temperatures up to 180°C. The design enhances low-frequency bounce and control capability while delivering richer sound imaging. It fully unleashes the front-end advantages of MK9700 including power reserve, vacuum tubes and electronic components, enabling the amplifier to break through output limitations.

Superior Circuit Design & Load Driving Capacity
*MK9700 earns the title of Full-Range Master thanks to its outstanding circuit design, top-tier components, remarkable load driving capability and reliable performance at every core link. MK9700 is a power amplification system that meets audio playback demands across diverse frequency bands.

Dynamic/Soft Dual Timbre Modes. Switch Between Two Musical Moods
* Mode 1: Dynamic Mode → Sound Engine with Explosive Energy. It delivers dense sound performance and powerful dynamics, releasing surging driving force and magnificent power. Its ultra-low frequency performance surpasses transistor amplifiers, with unrestrained dynamics and distinct chest resonance sensation.
* Mode 2: Soft Mode → Delicate Emotional Filter. The sound presents a spacious and warm texture like afternoon sunlight, delicate and mellow as fine brush sketches. It offers long-lasting listening comfort with strong appeal, and faint sonic details can be distinguished clearly like whispers. The Dynamic Mode unlocks the full power potential of tube amplifiers, while the Soft Mode returns to the analog soul of vacuum tubes. Whether you enjoy the delicate texture of jazz late at night or the stunning impact of electronic music at weekend parties, UOTANG Full-Range Master MK9700 handles all musical genres with flawless performance.

Dual-Function Full-Screen Sound Pressure Meter: Real-time Working Status Monitoring at a Glance, and Precise Fixed Bias Adjustment with Fine Tuning
* MK9700 is equipped with a high-precision dual-function VU audio level meter. The METER function monitors operating status and enables BIAS adjustment, allowing intuitive tracking of vacuum tube working conditions and convenient fixed bias tuning. External independent BIAS ADJ controls facilitate effortless monitoring and adjustment of operational states. The integrated full-view meter panel delivers immersive large-screen visuals linked to fine sound details. Matched with a black background and soft warm white backlight, it exudes understated premium and steady aesthetic quality.

Pure Power Amplifier/Integrated Dual Modes
* UOTANG MK9700 can function as a standalone power amplifier. The dual-mode design balances ease of use and advanced audio configuration.
* Pure Power Amplifier Mode: Connect directly to an independent preamplifier via the Pre In port, compatible with both tube and transistor preamps. Its 2000mV high-sensitivity input works with 99% of preamplifier devices on the market.
* Integrated Mode: Link directly to audio sources through dual RCA inputs, balanced inputs, and turntable inputs. It features 420mV sensitivity for plug-and-play operation.

Full Port Compatibility Design Supports Diverse Audio Sources
* MK9700 is equipped with three types of ports: turntable input, dual RCA, and balanced input. It covers analog audio sources, digital equipment, home audio, and professional systems. The all-compatible design delivers premium sound performance for all music media formats.
* Turntable Input: The dedicated PHONO port is customized for analog turntable sources to restore the warm texture of LPs. Its exclusive MM/MC input impedance is fixed at 51kΩ to match moving magnet cartridge output characteristics and avoid load distortion, fully preserving the groove details and analog flavor of vinyl records.
* Dual RCA Input: Two sets of CD and AUX RCA ports support 99% of household audio devices including CD players, decoders, and streaming players. With 420mV input sensitivity, users can play music instantly without complex configuration.
* Full Balanced XLR Input: The balanced port adopts a 3-pin XLR design that transmits differential positive and negative signals to effectively filter electromagnetic interference during signal transmission.

Large Signal Point-to-Point Wiring + Small Signal PCB
* MK9700 combines heavy-current point-to-point soldering for large signals with printed circuit boards for small signals. Precision engineering tailored to distinct signal characteristics balances stability, anti-interference performance, and signal purity, ensuring long-term reliable operation and high-fidelity sound quality.
* Large Signal Point-to-Point Soldering: High-current paths including power amplification stages and power supply rectifier filters use point-to-point wiring to guarantee stable large-current transmission.
* Small Signal PCB Soldering: Small-signal circuits such as preamplifier stages, phase-inversion circuits, and control modules adopt PCB layouts with optimized routing to eliminate electromagnetic interference from high-current traces to delicate small signals.

Built-in Multiple Protection Circuits & Power-On Timing Sequence
* 60-second Delay Protection on Startup: It incorporates protective measures including filament preheating, gradual current loading and output protection.
* Soft-Start Protection Function: It prevents circuit impact during cold or hot startup states to safeguard vacuum tubes and equipment.
* BMI Power Vacuum Tube Protection Function: It monitors the operating status of 845 vacuum tubes in real time, protecting the unit under abnormal conditions and avoiding damage to power supplies and output transformers.

More Details:
* Vehicle Paint Finish on Chassis, Exceptional Texture
* Tempered Glass Front Panel, Dazzling Vacuum Tube Visual Echo
* Red Copper RCA Female Sockets: Excellent Electrical Conductivity
* Nickel-Plated Carbon Fiber Binding Posts: High Conductivity & Low Internal Resistance
* American MIT Capacitors: German MCAP (for MUNDORF) Capacitors
* Ceramic Tube Sockets: Fast Conductivity, Anti-Oxidation & High Temperature Resistance
* Pure Aluminum Alloy Infrared Remote Controller: Delicate Matte Surface with Natural Texture
* Independent "Power Station" Base Station Wiring: Transmit Electric Energy When Connected to Main Unit

Specifications:
1. Overall Specifications:
* Overall Set Dimensions: 43cm (W) x 36cm (H, including foot pads) x 42cm (D, including binding posts)
* Tube Amplifier Main Unit Dimensions: 43cm (W) x 25cm (H, including foot pads) x 42cm (D, including binding posts)
* High Voltage Power Supply Dimensions: 43cm (W) x 11cm (H, including foot pads) x 40cm (D)
* Rated Output Power: 24W + 24W (RMS, 8Ω)
* Total Harmonic Distortion: 1% (1kHz)
* Frequency Response: 15Hz to 30kHz (-1.5dB)
* Input Sensitivity: 180mV
* Input Impedance: 100KΩ
* Output Impedance: 0Ω, 4Ω, 8Ω, 16Ω
* Signal-to-Noise Ratio: 92dB
* Power Consumption: 140W (Tube Amplifier Main Unit), 235W (High Voltage Power Supply)
* Vacuum Tubes: 12AX7*2/6SN7*2/300B*2/845*2/5U4G*1
* Mains Voltage: 220V±5% (50Hz)
* Net Weight: Total 108 jin (Tube Amplifier Main Unit 68 jin, High Voltage Power Supply 40 jin)

2. Phono Amp Specifications:
* Total Harmonic Distortion: 0.08% (1kHz)
* Frequency Response: RIAA bandwidth tolerance ±0.25dB, 20Hz to 20kHz
* Input Sensitivity: MM: 6mV, MC: 0.5mV
* Input Impedance: MC: approx. 100Ω, MM: approx. 50KΩ
* Signal-to-Noise Ratio: MC: 78dB, MM: 85dB
* Gain: MM: 50dB, MC: 72dB

Packing List:
* 1 x Set of Tube Amp

Packaging Details:
* Package weight: 112kg