quote:Originally posted by Nick Logan - Auckland, New Zealand:quote:Originally posted by Chuck-at-Bose:
The preamps on Inputs 1 & 2 are active when using either XLR (balanced, mic level) or 1/4" (unbalanced, instrument/line level)...
Isn't the XLR connected to a specific MIC preamp?
Yes and no (how's that for an answer ?)
Both XLR and 1/4" input go through the same preamp but they see a little different conditioning before they get there.
The XLR connects to a is balanced low impedance input stage with a lot of gain. The 1/4" input is unbalanced, has about 20 dB less overall gain but a very high input impedance.
Hope that helps