McIntosh MC501 Monoblock Power Amplifier (Used)


Fully Balanced Quad-Differential Design
New 3D Glass Panel Design
Exclusive McIntosh Output Autoformer®
Exclusive McIntosh Power Assurance System
Power Guard® Clipping Protection
Sentry Monitor® Current Protection
Thermal Protection
DC Failure Protection
Turn-On Delay
Soft Start Inrush Protection
Fiber-Optic Light Diffuser Illumination
Illuminated Peak-Responding Wattmeter
Balanced Connections
Remote Power Control


The MC501 Monoblock Power Amplifier has been designed to meet
the expectations of the most demanding audiophile. Delegating an
individual amplifier to each speaker eliminates any chance of interaction
between channels and expanding into multi-channel formats is as easy
as adding additional amplifiers.
Quad-Differential Circuitry, exclusive to McIntosh, reduces noise and
distortion to their lowest possible level. While the MC501 delivers a
massive 500 watts continuous power into 2, 4 or 8 ohms and over 1200
watts of peak power into low impedances, its noise levels are 124dB
below rated output. This means that the MC501 combines super-high
power with record-low levels of noise…nearly an impossible combination!
The MC501 has a bold look yet is unmistakably a McIntosh. It features
a 2-dimensional glass front panel containing a large peak-responding
true-wattmeter, all illuminated with cool running, ultra long-life LED
fiber-optic lighting. The chassis gleams in polished stainless steel and
vertically mounted connectors at the back make attaching cables easier
and takes up less shelf space. Both unbalanced and balanced inputs
are provided along with three sets of huge, gold-plated speaker
binding posts for high-performance speaker cables.


Power output: 500W into 8Ω (mono)

Frequency response: 10Hz to 100kHz

Total harmonic distortion: 0.005%

Damping factor: 100

Input sensitivity: 2.1V

Signal to noise ratio: 97dB

Speaker load impedance: 2Ω to 8Ω

Dimensions: 444 x 240 x 375mm

Weight: 41.6kg