Apologies highlandman; I think I was on my high horse a bit there!
Hi Mick; I use two of the Bose L1 towers for our bluegrass/old timey/acoustic blues band. The Slippery Hill Boys We tried the tone match engine, but I wasn't impressed with the effects quality. We're using a basic mixer and some quality outboard effects instead. Compression is especiallty useful with this setup.
The Bose amps, radiator speakers and the little bass bins that go with them are absolutely great though. Takes a bit of setting up, especially if you are setting them up behind you with no monitors as intended (feedback if you're not careful with mic placement). Loads of volume and clarity all through the room, without having to turn everything up to ear-bleeding level.
Tim