Transaudio D9PRO 150W/8Ω 300W/4Ω Power Amplifier Power Amp (Silver) Based on Circuit for DarTZeel

Transaudio D9PRO 150W/8Ω 300W/4Ω Power Amplifier Power Amp (Silver) Based on Circuit for DarTZeel

Circuit Features:
* Without global negative feedback, its amplifier circuit is based on the design for DarTZeel
* Warm, soft, comfortable, and pleasing to the ear
* With high damping factor, it allows effortless control over any speaker
* Dual-mono design with separate power supplies for left and right channels, achieving extremely high channel separation
* Features soft-start functionality and comprehensive speaker protection circuitry

Materials Used:
* 10 pairs per group (5 pairs per channel), precisely matched 1% for ON MJL3281/1302, offering high output current capacity
* Taiwan single-crystal copper wire for both small signal and high-current wiring
* High-end pure copper RCA terminals and binding posts
* 800W high-end transformer for Nippon Steel
* Original audiophile-grade resistors for KOA
* 12 audiophile-grade BC large electrolytic capacitors
* CNC precision-machined full aluminum enclosure for high-quality and durable construction

Specifications:
* Input Sensitivity: 1.66 Vrms
* Input Impedance: 22 kΩ
* Damping Factor: 800
* Output Power: 150W at 8Ω and 300W at 4Ω (RMS power, stable full power output for extended periods)
* Static Power Consumption: 120W
* Power Supply Voltage: AC110V or AC220V
* Unit Weight: 19 kg
* Unit Dimensions: 450 mm x 380 mm x 150 mm

AP Test Parameters (Tested with 8Ω 800W load):
* Output RMS Value: 35.71Vrms
* Channel Gain: 26.6dB (21.3 times)
* Signal-to-Noise Ratio (SNR): 124.6dB
* Dynamic Range: 124.7dB
* Total Harmonic Distortion (THD): 0.0020%
* THD+N (Total Harmonic Distortion + Noise): 0.0097%
* Frequency Response Bandwidth: ±0.046dB

Package Included:
* 1 x Power Amplifier
    
Packaging Details:
* Packaging Dimensions: 550 mm x 480 mm x 250 mm
* Weight with Packaging: 21 kg