I have my spare 800 in the studio and do all my mixing through the internal speakers - If the 330 works out, I'll get another one for the studio and mix everything just as it would be on the job. Interesting question, thx.
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Live: Korg PA4X/Bose L1 Pro 8/Senn 935

Studio: Korg PA4X/Kawai MP7SE/Tascam DP24SD/Sony C80/AGK 214/ATEM Mini Pro switcher/