My venue (2200 seat concert hall) will be purchasing 18 moving head LED wash lights to replace our 2kw strand alto fresnels. We've demo'd a selection of fixtures recently and have narrowed it down to either the mac quantum wash or the Robe 1000 ledbeam. Both fixtures impressed although they were demo'd a month apart so hard to compare from memory alone. The quantum wash seemed brighter, required less DMX channels and had the rotating lens. The 1000 ledbeam was bright enough without blowing me away, cheaper and was super quiet. Our primary needs are a great warm white output and as quiet as possible given that we need to use these for orchestral performances/conferences. They will do a lot of rock n roll etc also... We already have 8 robe dl4s profiles (very quiet), 6 b-eye k10 cc (not so quiet) and 5 chauvet R2 spots. All controlled from a GrandMA2 ultralight with faderwing. Does anyone have any 'real world' experience of these fixtures? I'd appreciate any views/ideas, particularly on fan noise levels..