Audio Research SDA1 4ch Power Amplifier

100 watts per channel into 8 ohms, 150 watts per channel into 4 ohms. 300 watts into 8 ohms, bridged

(-3dB points) DC to 150 kHz into 8 ohms

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1.5V RMS for rated output (25.5 dB Gain) unbalanced or balanced

150K ohms unbalanced, 300K ohms balanced differential

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0.09dB 8 ohm load to open circuit

21dB

100

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50V/µs

1.7 µs

Less than 40 microvolts RMS (117dB below rated output IHF A-weighted)

154,000 µF total

105-125VAC 60Hz (210-250VAC 50Hz) 640 watts at rated output (100WPC 8 ohms), 800 watts at 150WPC 4 ohms, 800 watts maximum, 105 watts idle

Input polarity: Non-inverting at unbalanced inputs. Balanced pin 2+ (IEC-268)

19″ (48 cm) W (standard rack panel) x 5 ¼” (13.3 cm) H x 12 ⅞” (32.7 cm) D. Handles extend 1 ½” (3.8 cm) forward of the ⅜” thick front panel. Output connectors extend 1″ behind rear panel

37.2 lbs. (16.9 kg) Net; 48.7 lbs. (22.1 kg) Shipping.