We use a Crown SoundTech 2, which does fine for running both our Peavey Implulse 800s and SG-4s (SG-6? shit, forgot, heavy as shit, leave those in practice room). It had one hitch (it WAS used, you know) but we took it back to the shop and they just spiked the signal and it fixed itself. It's very low noise (as far as I know), we generally take
the Mackie CFX-16 and turn the master level WAAY down (like -40 or -30) and keep the K2 cranked all the way up.
On that note, I think the Mackie needs looking at. Channel 5 is pretty much blown (why?) and we had to switch to subgroups 3 & 4 because subgroup 2 is, for some reason, attenuated about 30 dB. Really weird, it'll work for now, gotta have it looked at at some point...
Anyway, the SoundTech 2 was "$275" in a package trade we did a while back, obviously used...
If you're gonna record with this amp, beware the fan, it's noisy if you're recording acoustics...