The Autoformer is a type of transformer - wound at McIntosh Labs - that ensures that the MC452 is always working into an optimum load. This means that each channel consists of two matched amplifiers operating in push-pull, their outputs combined in the McIntosh Autoformer. First, the MC452 is what McIntosh refers to as Quad Balanced. The technology used to generate such impressive specifications is wide ranging. That’s dead quiet, folks in use, the MC452 had one of the lowest noise floors of any amp I’ve heard in my system. Another notable spec is the signal/noise ratio: an impressive 122dB through its balanced inputs, just below rated output power. And large it is: 17.5"W x 9.5"H x 22"D and weighing 110 pounds. Although McIntosh makes more powerful amplifiers of the monoblock variety, the MC452 is currently their largest, most powerful stereo model. McIntosh claims a peak output current rating of 75 amps. The big blue meters - a McIntosh hallmark - that adorn the front of the MC452 indicate a peak power output capability of 1.8kWpc. It also is capable, according to McIntosh, of 1.8dB of dynamic headroom. The McIntosh Laboratory MC452 is rated to deliver 450Wpc into 8, 4, or 2 ohms with no more than 0.005% distortion, regardless of power output level.
This is not your high-school girlfriend’s brother’s McIntosh. This amp has sonic prowess the MC2100 couldn’t even dream of 30 years ago. Here I sit in my listening room, the Music Vault, with the brand-new McIntosh MC452 ($7500 USD) powering my audio system. On hearing it, I immediately knew that I wanted McIntosh in my system.įlash forward 27 years. That system flat-out rocked in his little bedroom. Imagine my surprise when the little twerp’s uncle gave him a birthday present that I would have given anything to own: his old pair of Bose 901 speakers, along with his McIntosh MC2100 power amplifier and MX-113 preamplifier-tuner.
#Mcintosh mc 250 vs mc2100 upgrade
I was heavily into music and sound by that age, and was doing the best I could to upgrade my stereo on the paltry amount of money I could raise. I was 17 years old when I attended the birthday party of my girlfriend’s brother.
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