TransAudio MASTER Edition FM801 500W Power Amp Line-Level Two-Channel Power Amplifier (Black Shell)

TransAudio MASTER Edition FM801 500W Power Amp Line-Level Two-Channel Power Amplifier (Black Shell)

Upgrades:
* MJL4281 power transistors for ON, 28pcs per set, matched with 1% precision
* Premium-grade binding posts
* High-end RCA terminals
* Single-crystal copper signal wires
* Schurter power socket
* 5 Schurter gold fuses
* Original resistors for KOA
* Stricter tuning and testing procedures

Circuit Features:
* FM original spec core circuitry
* Completely independent left and right channels with no electrical connection
* Layout surpasses the original model, offering exceptional stability and zero noise
* It supports both single-ended and dual balanced inputs, allowing connection of two preamps, with relay-based switching

Materials & Build Quality:
* The amplifier uses 16 brand-new gold-sealed 2N3440/2N5416 transistors from recent production, all tested and matched with <1% precision. 
* It also includes 28 original, brand-new MJL4281 power transistors for ON Semiconductor, matched with <1% precision after selection from thousands of units.
* Each power transistor is paralleled with decoupling capacitors and electrolytic capacitors.
* 1200W high-quality transformer for Nippon Steel, with independent windings for left and right channels
* 120,000μF original high-grade capacitors for ELNA
* Soft start on power-up and comprehensive speaker protection circuit
* CNC precision-machined full aluminum chassis

Specifications:
* Input Impedance: 18KΩ
* Damping Factor: 500
* Output Power: 250W/8Ω and 500W/4Ω (RMS power, stable full-power output for extended periods)
* Idle Power Consumption: 110W
* Power Supply Voltage: AC110V or AC220V
* Chassis Color: Full silver or full black
* Product Dimensions: 450 × 155 × 390mm

AP-Assisted Design and Test Parameters (Tested with 8Ω Load):
* Output RMS Voltage: 45.7Vrms
* Channel Gain: 31.7dB (Gain factor: 38.6×)
* SNR: 124dB
* Dynamic Range: 124dB
* THD: 0.0016%
* THD+N: 0.0021%
* Frequency Response Bandwidth: ±0.014dB

Attention:
* To ensure quality, each complete unit undergoes comprehensive AP testing to guarantee it meets the design specifications.
* The testing includes: bandwidth, noise (signal-to-noise ratio), dynamic range, distortion, intermodulation distortion, channel separation, gain, and more.
* Each unit undergoes a 72-hour burn-in test, including a 1-hour full-load test at 8Ω and more than 1 hour of listening evaluation.
* The unit comes with a 1-year warranty.

Packing List:
* 1 x Set of Power Amplifier
    
Packaging Details:
* Package Dimensions: 550 × 260 × 500mm
* Weight: 22kg