Thanks for the replies every one. Ernie I don't have a scope (I have used one), or a but set. But with your detailed instructions I'm tempted to get one.
I know exactly what you are talking about with gain structures and signal to noise ratio, from years of matching components in car audio. I am tempted to get this piece but I'm also wary because of the lack of documentation. I found a bunch of other cheap ones but the S/N was around 85 dB.
At this price I think I'll just grab one but I don't want to wait for shipping. Is anyone aware of a similar piece that may be had from A&! or A/@& ?
My wife says I can't do sarcasm. She says I just sound like an a$$hole.
