[Wayne A. Pflughaupt]

terry j wrote:

I was going to do some test's on it earlier, indeed Wayne suggested what type of test's I could run on it for everyone, don't recall where to find his suggestions now!!

A broadband pink noise source will usually do it, as long as the EQ has full bypass capabilities. With the EQ set to flat, if you hear any tonal or timbre changes when you switch it in, it’s not passing a clean (read neutral) signal.

Regards,
Wayne