I know this discussion got overrun by mixer discussion (of which I will steer completely
clear), but as I was contemplating a single row 10U module case myself, I thought
I'd chime in for a moment:
I was thinking, at least for my cabinet, of having it be 6U high so that I could throw
a 1U mult panel (perhaps a slightly less Copperfieldian version of L. Hendry's magic
bus) across the bottom--opens up an extra smidgen of module space. Myself. I'm thinking that'd be a perfect spot for the upcoming preamp.
On topic once again
tomr