McIntosh MQ104

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Frequency Response: 20Hz to 20,000Hz with equalization set flat.

Hum and Noise: 90 dB (79uV) below rated output of 2.5V. Worst case setting, 85 dB (140uV) below rated output of 2.5V.

Harmonic and IM Distortion: less than 0.1% at rated output of 2.5V from 20 to 20,000Hz

Low Frequency Compensation: 5 steps are included for early McIntosh speakers, allowing 0 to +17 at 20Hz.

Input Sensitivity and Impedance: 2.5 volts into 27,000 ohms for rated output with controls set for flat response.

Output level and Impedance: 2.5 volts into 27,000 ohms or more with controls set for flat response. Output source impedance is 600 ohms.

Programmable Filters: 8 sections (4 per channel) each of which can be programmed for 1/3 octave center frequencies from 20Hz to 1000Hz. Filter bandwidth is programmable for narrow (approx.1/3 octave) or wide (approx. 1 octave). Amplitude is continuously adjustable +/- 12 dB for narrow and +/- 15 dB for wide. A dented control is used to position for flat response. Programming is achieved by means of plug-in capacitors provided with the MQ104.

Chassis: Chrome and Black

Weight: 4-3/4 lbs. (2.15 kg) net, 6-1/4 lbs. (2.83 kg) in shipping carton.