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Re: Well, actually, I do know what kind of filter but it's not particularly relevant.

Folks, I want to quote something that I said in an interview over 26 years ago and published in 'The Absolute Sound' March 1980. Now, it is off the cuff and not very technical, but I think it gets to the essence of the argument:
"... The designers are mostly interested in removing the aliasing frequencies, so they try hard to be very very far down at 25KHz and very far up--within a decibel--at 20KHz. It's a difficult constraint, because the rest has to go out the window; ringing, phase anomalies, group delay, overshoot, everything is there. They do try to phase compensate the filters and they do improve them somewhat in their phase characteristics, but then other problems occur. Its been proven by Barry Blesser, who's an expert in this field, that even if you phase compensate filters, you get a time problem. You get a time delay displacement, due to the phase compensation network. They are trying to finagle something that is a mathematical impossibility, so thay can only best-fit-it. It is like trying to contain a squishy substance that keeps squirting out somewhere else."
And this was when 50KHz was considered a minimum standard. Can some of you now realize how difficult it is to get 44KHz right? If it is possible at all?

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