Hi there!
About 2 years ago I bought an old Merlaud mixer (french from the 70s).
All modular, 4 channels summing (2 to 1) and (2 to 1).
After struggling to get a decent output from the summing modules, I finally decided to size down the frame, keep the PSU and the 4 input cassettes wired straight to jacks instead of the busses.
I know it's not a cool thing to do, impedances are probably screwed, but here's the catch:
If I plug the ouput into the unbalanced input of my Fostex 6301B powered monitor, I get a healthy level, it seems fine.
If I plug this into my Avid interface, the level is crap, I actually need to plug it into a micpre with about 30dB gain to get something useful.
Could it be just an impedance problem?
I haven't traced the merlaud module but here's the Fostex manual with schems:
http://www.google.be/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCcQFjAA&url=http%3A%2F%2Fwww.fostexinternational.com%2Fdocs%2Fdownloads%2Fpdfs%2F6301b_service_manual.pdf&ei=BmhQUO3LIoa-0QWv54CQBQ&usg=AFQjCNGZ6wXmgNRt1D-10kU8S76tnmryGw
About 2 years ago I bought an old Merlaud mixer (french from the 70s).
All modular, 4 channels summing (2 to 1) and (2 to 1).
After struggling to get a decent output from the summing modules, I finally decided to size down the frame, keep the PSU and the 4 input cassettes wired straight to jacks instead of the busses.
I know it's not a cool thing to do, impedances are probably screwed, but here's the catch:
If I plug the ouput into the unbalanced input of my Fostex 6301B powered monitor, I get a healthy level, it seems fine.
If I plug this into my Avid interface, the level is crap, I actually need to plug it into a micpre with about 30dB gain to get something useful.
Could it be just an impedance problem?
I haven't traced the merlaud module but here's the Fostex manual with schems:
http://www.google.be/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCcQFjAA&url=http%3A%2F%2Fwww.fostexinternational.com%2Fdocs%2Fdownloads%2Fpdfs%2F6301b_service_manual.pdf&ei=BmhQUO3LIoa-0QWv54CQBQ&usg=AFQjCNGZ6wXmgNRt1D-10kU8S76tnmryGw