Actually, having read your piece, I suppose I should mention some other
things. Some of the edgy sounding amps in the 70s were often due to dodgy
filtering from what I could tell. Pioneer seems to suffer from this
problem.

I once had a Tandberg amp that really seemed able to drive almost anything,
and sounded crisp and nice. Problem was it picked up any RF going and
amplified it.. Not very practical.


Tape, as I said in another response here had problems as it was obviously
impossible to record DC to a tape, so the flat tops were not flat.

You did not cover this aspect, but when folk decided direct coupling was a
nice way to sell amplifiers, they used to show it with square waves of
course. However, in air, you do not get DC, unless you cont the wind as DC,
but I've yet to see any speaker capable of a sustained draft!

So, integration will occur, thus the square wave is an input that cannot be
output in any case.

Brian

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Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Jim Lesurf" wrote in message
...
Hi,

I've just put up a new web page at

http://www.audiomisc.co.uk/HFN/Squar...quareDeal.html

that looks at the use of squarewaves for assessing amplifiers, etc.

Prompted to do this by noticing squarewave results being used to present
ideas about speaker cables, and realising that the humble squarewave has
largely fallen into disuse.

I've also tweaked the site a bit, and hope to make a few other minor
improvements and alterations soon.

Slainte,

Jim

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Please use the address on the audiomisc page if you wish to email me.
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