Home Speaker Asylum

General speaker questions for audio and home theater.

RE: sounds like an AMAZING deal

Friend of mine used to totally swear by his Phase Linear but when I saw him again a week after he heard my MC2 he had bought two of them already!


It is a popular misconception that the MC-series amps are digital or have DSP built in and I suspect that is the reason I got at least one them so cheap.

Thing is the amp is digitally controlled but there is nothing digital at all in the signal path.
What it means is that a little computer overlooks the workings of the amp ie if it gets close to clipping or overheating instead of limiters kicking in or relays tripping the computer fades down the supply rail voltage until the danger cedes. The amp will usually not go silent, just quieter.
It also works at switch on when the computer checks that everything works as designed and then fades the supply rail voltage up. This also increases the amps longevity as ss gear tends to fail on switch on in the vast majority of cases.

The audio path is as short as possible and essentially a standard class AB bipolar circuit.
However it is heavily biased (Ian McCarthy told me that the chances it will get into class B mode at home are small to nil) and the driver stage is current driven rather than usual voltage transfer design.


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  • RE: sounds like an AMAZING deal - b.l.zeebub 02:56:11 02/27/12 (0)

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