4B SST Specifications

Power Output 300 watts per channel into 8 ohms
500 watts per channel into 4 ohms 
Gain Select and Sesitivity 29dB - 1.8Vin = 300W @ 8 Ohms - (1V Position)
23dB - 3.6Vin = 300W @ 8 Ohms - (2V Position)
Input Impedance 50 Kohms single ended
20 Kohms balanced
Distortion IM or THD+noise < 0.005% 20Hz to 20kHz at 300 watts into 8 W
< 0.007% 20Hz to 20kHz at 500 watts into 4 W
Noise Measured with input shortened - 20Hz to 20kHz
>110dB below rated output 29dB gain (-75dBu)
>113dB below rated output 23dB gain (-78dBu)
Slew Rate >60 volts per microsecond
Power Bandwidth <1 Hz to over 100 kHz
Damping Factor Over 500 at 20 Hz, ref. 8 ohms
Dimensions
19" Version
with handles		 48.3 x 13.3 x 43.8cm - 19" x 5.25" x 17.25"
17" Version 43.2 x 13.3 x 40.1cm - 17" x 5.25" x 15.75"
Weight approx. 22kg. - 50 lbs
Power Consumption
& Heat Load
At Idle 170 Watts
Max. Heat Dissipation 580 Btu/Hr.
2 channels @ 300W @ 8 ohms 1280 Watts
Max. Heat Dissipation 8 ohms 2320 Btu/Hr.
2 channels @ 500W @ 4 ohms 2100W
Max. Heat Dissipation 4 ohms 3750 Btu/Hr
Bridged @ 900W @ 8 ohms 2040W
Max. Heat Dissipation 8 ohms 3890 Btu/Hr