I just bought a white face Firebass 700 from the pawn for $220 OTD, based on great reviews. I already have a Peavey Tour 210, which works fine with a Crate Powerblock 150 (except that the Powerblock is ok for the price, but that's not the best sound). The 210 is an 8 ohm cab, the Firebass is suppose to cover 2, 4 and 8 ohms. But when I tried the head with that cab, it just did not work right. The cab was giving a lot of krrrrrkch! sounds and stuff came flying out of the port (no, not broken parts, more like dirt). Is it just that it's not the right combination or am I missing something here? Also I have no patch cords, I have to run to GC tomorrow, so what I was using was an instrument cord. Ok, maybe I need to read the manual, but if someone could tell me what I may doing wrong, I would appreciate. I have one week to return it for cash, so I am going to try and see what I can get out of it. Oh, and the light was turning from green to red each time I wanted to play loud.