Vacuum Tube Power Amplifier (TP-9)

SPECIFICATIONS:

 Output  Power 1KHz @ 3% THD+N  8 Ohm:3.5W
Output  Power 1KHz @ 10% THD+N 8 Ohm:4W
Output  Power 1KHz @ 3% THD+N  4 Ohm:3.5W
THD+N 1KHz @ 1W O/P 8 Ohm:0.03%
THD+N 1KHz @ 1W O/P 4 Ohm:0.03%
Frequency Response @ 1W O/P -0.5dB 8 Ohm:30-33KHz
Power Brand width @ 4.5W O/P -0.5dB  8 Ohm:30-33KHz
Signal to  Noise @ 1Watts O/P 8 Ohm:88 dB
Signal to  Noise @ 4Watts O/P 8 Ohm:87 dB
Line Input Channel Separation 1KHz @ 1Watts O/P 8 Ohm:-75 dB
Line Input  Sensitivity @ 4W O/P 8 Ohm VR set to Max:900 mV
Speaker Input  Sensitivity @ 4W O/P 8 Ohm  VR set to Max:2 V
Line 1  to Line 2 Auto turn on time:12 Sec
RCA Line Input Impedance:22 K 
Speaker Input Impedance:100 Ohm
Bass Gain at 60Hz, Refer  0dB VR set Max:12 dB
Hum Noise @ Level VR at Max.:3 mV
DC Output Offset:3 mV
Max Red Led Indicator, @ Rated Power O/P, at 8 Ohms:76 W
Short Circuit Protection @ 1W O/P 8 Ohm. Protect
Short Circuit Protection @ 300W O/P 8 Ohm. Protect
Idle  Current :0.65 A
AC/230V  Ma .Current @ All CH. @ Rated power:0.8 A