"Arny Krueger" wrote in message
...
"Iain M Churches" wrote in message


I would be interested to know the phase response
of a high end SS amp (OK, I know, they are ALL high end:-)
at 20Hz and say 20kHz, or more points if the info is
available.

Look at the amp's frequency response curve and use what you know about the
Hibert transform or simply draw Bode diagrams to estimate the amp's phase
response.

As mentioned before, I have access to a phase measuring set
(generator and meter) In the past, I have made measurements
using an oscilloscope.

At low levels power amps tend to be minimum-phase.

So should I take measurements at different power levels?


Amps tend to have fairly well-matched response between the channels, so
the phase response isn't all that significant, anyhow. Phase response
matching between the channels is far more important.

Both channels seem very closely matched.
My increased interest in this parameter was fed by the fact that I now have
access to equipment to measure it, but I needed some figures on which to
base my judgement of the performance.

Iain