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McIntosh Labs MC2000 power amplifier:
Sidebar 1: Specifications Description: Tubed stereo power amplifier. Tube complement: eight KT88 or 6550, four 12AX7A, two 12AT7. Inputs: RCA/XLR with mode switch. Output meters: left/right channels calibrated in W and dB, mode switch for peak hold and lights. Power output: 130Wpc (21.1dBW) into 8, 4, or 2 ohms, 20Hz-20kHz. Frequency response at 1W output: 20Hz-20kHz, -0.25dB; 10Hz-100kHz, -3dB. Harmonic distortion at any power level: 0.5%, 250mW to rated power per channel, 20Hz-20kHz. Maximum intermodulation distortion: 0.5%, if instantaneous peak power output doesn't exceed twice the output rating per channel, both driven, 20Hz-20kHz. A-weighted hum & noise: 100dB below rated output. Damping factor: greater than 18. Input impedance: 20k ohms single-ended, 40k ohms balanced. Input sensitivity (switchable): 2.5V for rated output, 1.2V for rated output (1V for 100W output).
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