I'm looking at the SWR WM10 or WM12 or the Carvin PB 10 or 15 and wonder if anyone can help me decide. I just need a small but powerful amp to play with a drummer in jam sessions at a house or small party. I have a larger amp that I use for gigs. The 30 watt Peavy 110 had a difficult time last weekend. I'm lucky that it didn't blow!