Gca-510 specifications, Power rating (to ftc requirements), Im distortion (sluipte) – Adcom GCA-510 User Manual
Page 8: Thd + noise at 50 watts into 8 ohms (typical), Thd + noise at 75 watts into 4 ohms (typical), Frequency response @ 1 watt into 8 ohms, General
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GCA-510 SPECIFICATIONS
Power Rating (To FTC Requirements)
50 watts continuous average power into 8 ohms at any frequency between 20Hz and 20kHz with both channels driven
at iess then 0.075% THD.
75 watts continuous average power into 4 ohms at any frequency between 20Hz and 20kHz with both channels driven
at less then 0.075% THD.
iM Distortion (SlUIPTE)
1 watt to 50 watts into 8 ohms............................................................................................................................................ ^ 0.05%
1 watt to 75 watts into
4 ohms............................................................................................................................................ 0.05%
iM Distortion (CCiF, Any Combination from 4kHz to 20kHz)
50 watts into 8 ohms........................................................................................................................................................... ^ 0.02%
75 watts into 4 ohms........................................................................................................................................................... — 0.02%
THD + Noise at 50 watts into 8 Ohms (Typical)
20Hz..................................................................................................................................................................................... 0.012%
10kHz................................................................................................................................................................................... 0.035%
20kHz..................................................................................................................................................................................... 0.05%
THD + Noise at 75 watts into 4 Ohms (Typical)
20Hz..................................................................................................................................................................................... 0.025%
1kHz..................................................................................................................................................................................... 0,018%
10kHz..................................................................................................................................................................................... 0.04%
20kHz................................................................................................................................................................................... 0.055%
Frequency Response @ 1 Watt into 8 Ohms
10Hz to 20kHz.................................................................................................................................................................... +0,-,5dB
Power Bandwidth (-3dB)...................................................................................................................................................3Hz to 100kHz
Signal to Noise Ratio, “A” Weighted
50 watts into 8 ohms...........................................................................................................................................................> 105dB
Damping Factor
20Hzto 20kHz........... ;.............................................................................................................................................................> 3 8 0
Rise Time
5kHz, 65V peak to peak square wave, 20% to 80%................................................................................................................1.5us
Semiconductor complement................................................................................................................. 33 transistors, 2 zener diodes,
10 diodes, 1 IC, 1 diode bridge
Power Consumption (Continuous, Both Channels Driven)
Quiescent.................................................................................................................................................................................50VA
Maximum............................................................................................................................................................................... 600VA
50 watts into 8 ohms.............................................................................................................................................................. 275VA
75 watts into 4 ohms.............................................................................................................................................................. 420VA
General
Power (avaiiabie in 220V or 240V on special order)......................................................................................................120VAC/50-60Hz
Chassis Dimensions............................................................................................................ 3’(76mm) x 17"(432mm) x 11V4”(286mm)
Maximum Dimensions..........................................................................................................3V2”(89mm) x 17"(432mm) x 13''(330mm)
Weight...............................................................................................................................................................................15 lbs.(6,8kg)
Weight, Packed................................................................................................................................................................ 17,5 lbs,(7,9kg)