On Fri, 29 Oct 2004 14:51:01 +1000, Tat Chan
wrote:

Keith G wrote:

What is especially laughable is the suggestion that a 'ruler flat' FR graph
means *anything* at all in the real world. I could give you the phone number
of a valve amp designer who will laugh his arse off if you start arguing
'ruler flat' anything!!!

I would have to disagree here (and the technical posters can correct me
if I am wrong). Having a flat frequency response means no frequency
component is attenuated or amplified disproportionaly to othe frequency
components, which means that the ouptut waveform is just a larger
version of the input waveform. If the FR graph isn't ruler flat, then
certain frequencies would be exagerrated during playback.

Quite so. The valve amp designer would be laughing in an embarrassed
way, because of his inability to achieve a flat response............
--

Stewart Pinkerton | Music is Art - Audio is Engineering