Wise choice on the QSCs. I've used this brand for many years. I love the K8.2s and they work for everything I do (although at most, 100 people or so). The DSP is great for no sub, just set it accordingly and go. Good luck!
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Yamaha 920 / Yamaha DGX-670 / Maui 5 Go (2) / Senn e935 / Sony C80 / Tascam DP24sd / ATEM Mini Pro switcher (studio)