"Ian Molton" wrote in message


On Wed, 28 Jan 2004 06:27:03 -0500
"Arny Krueger" wrote:

And, there's equipment that is THAT good. Any halfways-decent audio
interface with digital input or output for example, as well as some
of the better analog stuff. Consider this:

http://www.pcavtech.com/soundcards/L....htm#FR_1644-a

What causes the massive 'spike' in frequency response above 20kHz ?

I think that's per design. It's part of the *price* they pay for the
exceedingly flat response below 20 KHz.

The "massive spike" actually is less than 0.2 dB high. Because its narrow
and at such a high frequency, it's sonically meaningless.