MC252 Power Amplifier Features
EXCLUSIVE MCINTOSH POWER ASSURANCE SYSTEM
A collection of technologies that enhance performance and reliability
while protecting the amplifier and loudspeakers.
POWER GUARD®
A waveform comparison circuit continuously monitors both input and
output signals. Power Guard dynamically adjusts the input level to avoid clipping
while preventing harsh sounding distortion.
SENTRY MONITOR®
Fuse-less short-circuit protection circuit disengages the output stage
before current exceeds safe operating level – resets automatically.
OUTPUT AUTOFORMER®
Unique McIntosh technology delivers the full rated amplifier output with the
least possible distortion into loudspeaker impedances of 2, 4, or 8 Ohms; you get all the power you paid for and the freedom to choose any loudspeaker.
WATTMETER
Swift, accurate response reveals program peaks so staying within the power limits of your loudspeakers is easy.
MONO OPERATION
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.
- Exclusive McIntosh Power
- Assurance System
- High Output Current Capability
- Wide Bandwidth
- Fiber-Optic Illuminated 3D Glass
- Front Panel
- Mono Capability
MC252 Power Amplifier Specifications
RMS POWER OUTPUT
250W min. (stereo) or 500W min. (mono and biamp parallel) sine wave continuous average power output from 20Hz to 20kHz.
RATED POWER BAND
20Hz to 20kHz
TOTAL HARMONIC DISTORTION
Maximum Total Harmonic Distortion at any power level from 250 milliwatts to rated power output is 0.005%.
DYNAMIC HEADROOM
2.0dB
FREQUENCY RESPONSE
20Hz to 20kHz, +0 / -0.25dB
10Hz to 100kHz, +0 / -3dB
INPUT SENSITIVITY
1.6V unbalanced 3.2V balanced
A-WEIGHTED SIGNAL-TO-NOISE RATIO
112dB below rated output
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%.
INPUT IMPEDANCE
10,000 ohms (unbalanced)
20,000 ohms (balanced)
OUTPUT LOAD IMPEDANCE
Terminals for 2, 4, or 8 ohms (stereo)
Terminals for 4, 8, or 16 ohms (mono)
Terminals for 1, 2, or 4 ohms (bi-amp parallel)
WIDE BAND DAMPING FACTOR
Greater than 40
POWER GUARD
Clipping is prevented and THD does not exceed 2% with up to 14dB overdrive at 1kHz.
POWER REQUIREMENTS
120V, 50/60Hz, 6.6A
OVERALL DIMENSIONS
(H x W x D including feet and knobs)
9-7/16” (23.97cm) x 17-1/2” (44.45cm) x 14-13/16” (37.62cm)
WEIGHT
94-1/2 lbs. (42.87kg) net
108-1/2 lbs. (49.22kg) in shipping carton
For the Consumer's Protection
In order to ensure the highest level of customer satisfaction, "new" McIntosh products may only be purchased over-the-counter or delivered and installed by an Authorized McIntosh Dealer.
McIntosh products that are purchased over the Internet, by phone or mail order are presumed to be "used" and do not qualify for any McIntosh Warranty. McIntosh does not warrant, in any way, products that are purchased from anyone who is not an Authorized Dealer or products that have had their serial number altered or defaced.
