Obviously one of the biggest differences between the QU and CQ series is the physical faders. Given that it sounds like it’s just band members without someone “mixing” the show from FOH, the lack of physical faders on the CQ series probably isn’t a big deal. Because of the lack of physical faders, the CQ consoles are smaller form factor than the QU series (at least the ones that have faders). That may be a real benefit.
Some of the limitations of the CQ series (like not having DCAs or mute groups) can be avoided by using the third party app, Mixing Station. I actually would recommend that app regardless of the mixer you end up purchasing. Mixing Station supports most of the consoles in this price range (A&H, Behringer, etc).
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