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
Power Supply Capacitance 90,000µF
Power Supply Transformers 2 x 600VA
Результаты заводского тестирования данного усилителя
  left right bridge
THD at full rated output power
20 Hz .00113% .00131% .00097%
200 Hz .00115% .00121% .00080%
2 000 Hz .00120% .00132% .00097%
20 000 Hz .00232% .00226% .00375%
Output power at clipping (8ohms, 2kHz, 0.1% THD)
Watts RMS 341 341 1024
Noise (20Hz to 20kHz, input shorted, decibels below referenced output)
Unbalanced (1V in/100W out) -113 dB -112 dB -116 dB
Balanced (2V in/100W out) -120 dB -115 dB -120 dB
Dimensions
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



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