Product Details:
 
Note: This is kit, you need to assemble it yourself.

Power: 25W

Voltage: around ±23V
 
PC size: 26*4.5cm
 
3 pairs of big tubes per channel
 
Quasi-mirror layout, 99% of the original wiring
 
P2 adjusts the midpoint, P1 adjusts the current
 
2sk370 and 2sj108 differential tube input, high power tube IRF240 and IRF9240 tube output
 
When the single tube current is 450ma, each channel outputs 25 watts of Class A power (8 ohms)
 
Distortion: @ 1 watt  .05% @ 1 KHz

Input Impedance :47 Kohm

Damping Factor :40

Output power :stereo 8 ohms  25 watts @ 0.5% THD, 1KHz

Voltage Gain : -0.3 dB

Maximum unclipped output :+/-20 Volts

Maximum output current : 5 amps

Frequency response : - .5 dB @ 0.1 Hz, 200 KHz

Noise : 50 uV unweighted, 20-20 KHz


Package List:  

1 Pair × PASS F4 Power Amplifier Kit