I understand what your saying now. But let me ask one more question. I don't know if you have ever done this. But if you matched the sound of two preamps using your predetermined sine frequency of 1khz. Does that mean that any other frequency you play through the preamps in question would also be matched in volume? Or would the preamps only be matched at that single frequency?

Thanks again.

I'm still going through "The Audio Critic." What a great magazine!! I don't agree with him on several issues (eg., tube amps being expensive tone controls.) More later......Colin

"I know Aczel believes it is; yet don't you find it a little puzzling that these DBT results almost never coincide with results that would provide a usefull set of data?"

"Not to mention that the samples are always way too small for a true DBT study to have any validity. In other words it is almost always a wash regarding information that would prove anything one way or the other."

"Which brings us back to the guitar question. How do they all come to agree?"

Hope that helps.