X9 Class A Electronic Tube Power Amplifier Pure Stage/Phono Amplifier Support HUM BAL Adjustment Replacement for 300B

X9 Class A Electronic Tube Power Amplifier Pure Stage/Phono Amplifier Support HUM BAL Adjustment Replacement for 300B

Features:
- Pure manual production, the whole machine adopts the shed welding.
- Two Japanese EI-type output transformers with high quality broadband response and high sound quality are adopted.
- Using high-power Z11 core ring-type power transformer specially designed for this machine.
- The high-voltage part adopts 2 specially customized duplicate Xidian 274B for full-gallbladder rectification.
- The front stage uses two Russian 6SL7 and 6SN7EH vacuum tubes respectively, and the rear stage uses two 300B vacuum tubes for class A power amplification.
- Peripheral power tube current adjustment button, current display and dynamic output level UV meter.
- Adopting for ALPS motor potentiometer and for Mondorf M-CAP enthusiasts-level capacitor.
- Boot mute delay function (about 30 seconds).
- Infrared function remote control.
- Easy to install plug-in vacuum tube protective cover.
- With balanced input and phono amplification input.

Specification:
- Rated output power: 8W + 8W (RMS)
- THD+N: 1% (1kHz)
- Frequency response: 10Hz - 50kHz (-1.5dB)
- Input sensitivity: 150mV (0dB), 260mV (-3dB), 420mV (pre in)
- Input impedance: 100Kohms
- Output impedance: 4ohms, 8ohms, 16ohms
- SNR: 92dB
- Power consumption: 155W
- Left and right output balance degree: <1dB
- Vacuum tubes: 6SN7 x 2, 6SL7 x 2, 300B x 2, 274B x 2
- Product size: 430 x 393 x 226mm
- Power voltage: 110V/220V±5% (50Hz)
- Working temperature and humidity: 0 - 40℃, 20% - 80%
- Storage temperature and humidity: -20℃ - 70℃, 20% - 90%

Package Included:
- 1 x Tube Amplifier
- 1 x Remote Control