xtant 603x Specs :
3 channel amplifier
2 x 75W + 1 x 150W at 4 ohms
2 x 150W + 1 x 300W at 2 ohms
1 x 300W bridge at 4 ohms
Fuse: External 100A
Xtant 121m
Specs:
Watts per Channel @ 4 Ohms: 1 x 125 Watts 2 x 50 Watts 4 x 50 Watts
Watts per Channel @ 2 Ohms: 1 x 250 Watts 2 x 100 Watts 4 x 100 Watts
Bridged Mono Output @ 4 Ohms: N/A 1 x 200 Watts 2 x 200 Watts
Frequency Response: 5 Hz to 50 kHz 5 Hz to 50 kHz 5 Hz to 50kHz
Distortion (THD):
Signal-To-Noise Ratio: > 100 dB > 100 dB > 100 dB
Damping Factor (@ 100 Hz into 4½ load): > 200 > 200 > 200
Inpt Sensitivity
Unbalanced Source 100mV to 8.5V 100mV to 8.5V 100mV to 8.5V
Balanced Source 100mV to 17V 100mV to 17V 100mV to 17V
Output Impedance: 2 - 8 Ohms 2 - 8 Ohms 2 - 8 Ohms
Output Impedance (Bridged): 4 - 8 Ohms 4 - 8 Ohms 4 - 8 Ohms
Supply Voltage: 10.5 to 15 Volts 10.5 to 15 Volts 10.5 to 15 Volts
Fuse: 30 Amp 30 Amp 50 Amp
Both amps power up but produce no sound. No visible damage to inside as far as my eye can see. Price I am willing to neg. Physical conditon is good on both some minor scratches mostly on the bottom but they still shine like new.