Wow thanks. I imagine the preamps are the same idea, just with a 4-bus output design.
Maybe you have an idea on this problem - the VU meter bottom lights (both channels) seem to oscillate (-40 and -30 dbu) as if there is some kind of noise floor pulsing, even with all faders are off and all channels are muted. I haven't dug into it much yet, but from what I can tell it's not audible - just a metering fluke.
Any thoughts? This board is getting a bath soon, it needs help. Thanks
-kdawg