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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Re: Or maybe I have already learned and found some of the answers you are seeking?

Hi,

Well, I can perfectly live with that. The results of subjective evaluation are rarely unambigous. I have compared differential and rail symmetrical SE (diamond transistor and related) circuit structures in both power amps (discrete) and monolithic Amp's, with a great preference for the rail symmetrical SE ones.

But like any other circuit, so many variables influence the design that many differnet conclusions CAN be arrived at. BTW, in the end I find the OPA627/637 (sonically) slightly "foggy" and overly "warm" compared to a wire bypass, unlike the AD811 and LM6181 which I cannot tell from a wire bypass.

Later T


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