T and D conclusions (Off Topic)

by GC, Saturday, April 21, 2007, 09:39 (6215 days ago) @ Giovanni

I know that Signature 30 use exactly the Tripath reference board, like
AMP1. But on Signature 30 there are some tweaks: two big PIO input caps
and battery power with small bulk caps (with respect to ordinary PS). I
don't know the Sig 30 output filter circuit, that is what most affects
sound.

Of course this is not a defence of class-T. Just curious because I didn't
notice myself the 10Khz-20Khz raising freq, and I know other measurements
with same results.

My only guess is that that the T used here and the Sig's....acts fine when imp is higher than x Ohms. The shown imp. plot does not present a particular "low" imp. load. Just typical variations.

When the imp goes real low, i.e. 3 Ohm or 2 Ohm they start to see a short cut...and then....

?

GC

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