I don't really want to sell this, but it's time. I've had this for a few years and used it as my main amp and then as my desktop amp after moving up the Mcintosh integrated line. Up until last year it functioned perfectly, and I preferred the sound of the aux in for digital sources over my MA6200, but about 9 months ago it started making intermittent popping sounds through the speakers while playing any input. It's totally unrestored, so I'm guessing it's in need of a recap, or maybe just some solder joints need to be reflowed. There is some corrosion on the chassis, and some minor scratches/discoloration on the wood case. Overall it looks very nice. The glass is in great shape.
I'm only willing to ship if you have an official McIntosh double shipping box sent from audioclassics.com
ELECTRICAL: 45w/ch stereo, 90w mono. Response 20-20kHz (+0.5 -0.5dB). Distortion 0.25%. Noise and hum -75dB high level, -70dB low level re 10mV. Output impedance 4, 8 or 16 ohms. Damping factor 100. Power amp noise -90dB. Input sensitivity and impedance: high level 0.3V at 250k, phono 2.0mV at 47k, tape head 2.0mV at 500k. Tape output 0.3V. Dual concentric tone controls +18dB to -18dB. LF filter 50Hz at 12dB/oct. HF filter 5k at 12dB/oct. Phase switch: 0 or 180. L+R adjustable to 6V at 5k ohms.
FRONT PANEL: Glass panel at top. Input selector: aux, tape, tuner, phono 1, phono 2 and tape hd. Bass and treble each dual concentric. Volume. Mode selector: L to L+R, R to L+R, stereo rev, stereo, mono (L+R), L+R to L and L+R to R. Balance. Rocker switches: comp: RIAA or LP, tape monitor, phase, speaker, power, LF filter, HF filter, loudness. Indicator lights for tape, speaker and power. Headphone jacks.
BACK PANEL: Barrier terminals for speakers. Outputs: tape and L+R. High level inputs: tape mon, aux, tape, tuner. Low level inputs: ph 1, ph 2, tape hd. Ground binding post. L+R gain control. AC outlets: 3 switched, 1 unswitched. Fuse.
Size 5-7/16"H, 16"W and 14-1/2"D. Weight 25 lbs. Sold from 1966-1972. Last retail price $449.00
Amp and original McIntosh slant leg wood case
Re: McIntosh MA5100 Integrated
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