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FS: McIntosh MC252 Power Amplifier


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McIntosh MC252 Power Amplifier $3200

Voltage: 120V
Cosmetic Description: 9/10 Excellent condition with no notable blemishes.
What is Included: Amplifier, Remote, Manual, Factory packaging
Functional Notes: Operational condition of this item is excellent, fully tested and no issues found.

Compact yet powerful, the McIntosh MC252 continues a tradition of classic McIntosh amplifier design. Cool and quiet in operation while rewarding to listen to, MC252 is the McIntosh value amplifier.

With 250 watts per channel at 0.005% maximum distortion across the entire audio spectrum, the MC252 delivers a tremendous amount of clean power. McIntosh’s exclusive Output Autoformer ensures the amplifier will always deliver full power, without stress, to any type of loudspeaker. Whether the speakers used are 2, 4, or 8-Ohms, McIntosh Autoformers ensure that every bit of power is utilized. Superior, fuse-less short circuit protection is provided by the McIntosh Sentry Monitor circuit. Power Guard, an input/output comparator, responds within 1/1000 of a second to eliminate amplifier clipping.

A polished stainless steel chassis, premium glass front panel with fiber-optic / LED frontpanel illumination and True Power Peak Responding Wattmeters lend a look of pure elegance to this powerful amplifier.

Waveform comparison circuit continuously monitors both input and output signals to avoid clipping while preventing harsh sounding distortion.
Fuse-less short-circuit protection circuit disengages the output stage before current exceeds safe operating level – resets automatically.
Unique McIntosh Autoformer technology delivers the full rated amplifier output with the least possible distortion into loudspeaker impedances of 2, 4, or 8 Ohms.
Swift, accurate Wattmeter response reveals program peaks so staying within the power limits of your loudspeakers is easy.
The two 250 watt channels may be combined into a single channel of 500 watts. McIntosh exclusive output autoformers allow this 500 watts to be delivered into 1, 2, 4, 8, or 16 Ohm speakers.
Power Output: 250 Watts at 2, 4, or 8 Ohms x2; 500 Watts at 4, 8, or 16 Ohms.
Bandwidth: 10 Hz to 100 kHz.
Sound to Noise: 112dB.
Dimensions: 9 7/16” x 17 1/2” x 14 13/16”, 94-1/2 lbs

Power Output Stereo
Minimum sine wave continuous average power output per
channel, all channels operating is:
250 watts into 2 ohm load
250 watts into 4 ohm load
250 watts into 8 ohm load

Power Output Mono Bridged
Minimum sine wave continuous average power output is:
500 watts into 4 ohm load
500 watts into 8 ohm load
500 watts into 16 ohm load

Power Output Mono Bi-Amp (Parallel)
Minimum sine wave continuous average power output is:
500 watts into 1 ohm load
500 watts into 2 ohm load
500 watts into 4 ohm load

Output Load Impedance
2, 4 or 8 ohms (Stereo Mode)
1, 2, 4, 8 or 16 ohms (Mono Modes)

Rated Power Band
20Hz to 20,000Hz

Total Harmonic Distortion
Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is 0.005%

Intermodulation Distortion
Maximum Intermodulation Distortion if instantaneous peak output per channel does
not exceed twice the rated output, for any combination of frequencies from 20Hz to 20,000Hz,
with all channels operating is 0.005%

Dynamic Headroom

Frequency Response
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz

1.6 Volts Unbalanced Input
3.2 Volts Balanced Input

A-Weighted Signal To Noise Ratio
112dB below rated output

Input Impedance
10,000 ohms Unbalanced Inputs
20,000 ohms Balanced Inputs

Wide Band Damping Factor
Greater than 40

Power Requirements
100 Volts, 50/60Hz at 8.0 amps
110 Volts, 50/60Hz at 7.2 amps
120 Volts, 50/60Hz at 6.6 amps
220 Volts, 50/60Hz at 3.3 amps
230 Volts, 50/60Hz at 3.3 amps
240 Volts, 50/60Hz at 3.3 amps
Note: Refer to the rear panel of the MC252 for the correct voltage.

Overall Dimensions
Width: 17-1/2 inches (44.45cm)
Height: 9-7/16 inches (23.97cm) including feet
Depth: 14-13/16 inches (37.62cm) including the Front Panel and Knobs





McIntosh MC252 Power Amplifier 1.jpg

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11 minutes ago, DavidHi said:

These are very heavy and local pickup preferred


Aside from the fact that those are the antithesis of "classic New England" speakers, no location for p/u and no mention of price. I'll pass.

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