McIntosh MC452 Quad Balanced Power Amplifier, 450W!


New amplifiers from McIntosh are virtually impossible to get these days so this "one generation back" amplifier might be your best bet.

This amplifier was carefully reviewed and tested here in our lab and listening room, and it is working as it should.

It presents like new with clear bright meters and clean paintwork, showing only the slightest signs of use.

And we have additional MC452's available as of this listing in case you'd like to bi-amp your speakers.

This MC452 ship in a factory fresh McIntosh double box which is the only way to ensure safe transport. Be wary of any seller that will ship in anything else.

Please note due to size and weight this item is not covered under our free shipping promos that we offer from time to time.

This will ship for $450 flat rate freight anywhere within the lower 48 US States strapped to a pallet due to its weight and for safe travels. If you're on the East Coast contact us before your purchase to double-check this rate.

We strongly recommend 2-3 friends to help you unbox safely on arrival.

Please see our last photo or the linked manual below for full specifications:

McIntosh MC452 Quad Balanced Power Amplifier - Owner's Manual

Performance Features Include:
• Power Output
The MC452 is a Power Amplifier with a capability
of 450 watts per channel into 2, 4 or 8 ohm speakers with less than 0.005% distortion. The Power Amplifier Circuitry uses Thermal Trak Output Transistors for lower distortion and cool operation.

• Quad Balanced Circuitry
The MC452 is fully balanced from inputs to outputs. It consists of two matched power amplifiers operating in push-pull with their outputs combined in a McIntosh Autoformer. The Quad Balanced configuration cancels virtually all distortion.

• Patented Autoformer
McIntosh designed and manufactured Output Auto- formers provide an ideal match between the amplifier output stages and speaker loads of 2, 4 and 8 ohms. The Autoformers also provide perfect DC protection for your valuable loudspeakers.

• Balanced and Unbalanced Inputs
Balanced connections guard against induced noise and allow long cable runs without compromising sound quality.

• Power Guard
The patented McIntosh Power Guard circuit prevents the amplifier from being over driven into clipping, with its harsh distorted sound that can also damage your valuable loudspeakers.

• Sentry Monitor and Thermal Protection
McIntosh Sentry Monitor power output stage protection circuits ensure the MC452 will have a long and trouble free operating life. Built-in Thermal Protection Circuits guard against overheating.

• Special Power Supply
A very large Power Transformer and Large Capacitors ensure stable noise free operation even though the power line varies.

• McIntosh Custom Binding Posts
McIntosh patent pending gold plated output terminals deliver high current output. They accept large diameter wire and spade lugs. Banana plugs may also be used only in the United States and Canada.



NEW Official McIntosh Double Box





Not Applicable


Yes - Power

Physical Condition


Working Condition


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