OK I think we have this sorted. The whole desk seems to be referenced in DBFS. The green LEDS turn to yellow at -12 (something that happened at 0 on the old desk), the yellows turn to red at 0. Monitoring it more closely at peak the CD signal just enters the yellow section - I should mention that I put the dip switches on the AD card back to their original setting. Turning the system up full (not for the fainthearted) the 3db to clip light on both the desk at amps starts to flicker. We also adjusted the amps slightly.
Mics appear to work the same way. Hot Mangu stopped by after their practice and spent 6 hours helping us test things out. This was mostly 6 hours of "ONE TWO" pause twiddle "ONE TWO". Those guys have the patience of saints. The gain on the vocal mics with the input signal turned up to 0 was the giveaway. After err 5 hours and 50 minutes of fruitless EQing in a minefield of feedback we turned it down so that it just peaked in the yellow and everything started working.
What blew me away was that 30 people had showed up, and despite me suggesting that really they'd be better off drinking elsewhere they stayed till the end. It must have been torture. No let me rephrase that... IT WAS FUCKIN TORTURE.
Many thanks to Hot Mangu, we couldn't have done it without you.
Flash
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