Product Details:
Refer to United States Conrad johoson circuit tube preamplifier.True full-balance, with 4-channel independent control and amplification throughout the entire process.
Built-in balanced isolated power supply ensures a quieter background.
The relay switches the resistor R2R to control the volume, ensuring good sound quality, stability, and reliability.
Remote control for power on/off, with low standby power consumption.
Power-on mute delay, no impact during power-on and power-off.
Based on the Conrad Johnson circuit, it boasts stable performance and guaranteed sound quality.
High-definition LCD display, making the working status clear at a glance.
Parameters:
Input impedance: 100K
Output impedance: 600Ω
Voltage gain: 15db
Frequency response: 15Hz-150KHz
Harmonic distortion: 0.01%
Power consumption: 55W
Weight: about 9kg
Input voltage: AC220V/110V
Size: 430*310*95mm
Package list:
1 × tube preamplifier
1 × remote control（Battery not included）
Type A:12AU7 tube *4 6Z4 rectifier electron tube *1
Type B:12AU7 EH pin tube *4 GE6X4 rectifier electron tube *1
Type C:ECC82 tube *4 GE6X4 rectifier electron tube *1
Type D:ECC82 gold-pin tube *4 GE6X4 rectifier electron tube *1 
