Okay, I need everyone to take off their audiophile hats for some help on this one. We've got an 8000 sq ft machine shop with ~20 ft ceilings, and I need to get some sound out there for music and talk radio, especially for the night and weekend guys. The space is not going to get any acoustic treatments and the speakers will be battling the noise of large compressors and machining centers, so quality is irrelevant. Haven't measured ambient noise, but I'd guess around 60dB.
I'm thinking of putting in about 8 indoor/outdoor speakers run off of cheap pro amps, single channel (maybe A/B/AB channels for opposite ends of the shop). Something like these:
Dayton Audio IO435B 4" 3-Way Indoor/Outdoor Speaker Pair Bla | 310-030
KLH 403
And then either a pair of 4 channel pro amps or a multi-room home amp. Any recommendations? Shouldn't need more than 100W/channel.
I'd like do the whole thing for under $500, preferably half that with a lot of used speakers off of eBay. Possible?