What are your opinions on a second hand O2R with unity card etc. and hooked through the motu Mk3 interface into DAW. I know the mixer is only 20bit but the motu Mk3 should step this up to 24 bit into the DAW right? I need a mixer with digital effects for live work thats why i thought of this mixer in particular. I have the opportunity to get one with the Unity card (TC Electronics m2000 effects) but is it to old hat to go down this path? What are your opinions/suggestions?
I'm using an O2R with the MOTU 2408 MkII. I don't use it for my live sound--mainly because I need it at the studio too much to risk breaking it. For live sound it would kick ass (compressors and gates on every channel... 6 AUX sends...) but, it only has 8 stock mic preamps, there are many ways around this, (AD converters with ADAT outs into O2R ADAT cards). The O2R Version 2 software upgrade allows 24bit 96k operation... but you lose half you channels. For live sound I can't imagine the O2R's sound quality not being good enough.
I have had my O2R for six years and have NEVER had a problem. But I never move it.
I think the O2R could be a great choice... but I hope you'll be getting WELL paid to haul it around.