I picked one of these up a long while ago and am getting it over to the repair shop for a cleaning and such. I have been looking high and low for any information on this amp and cannot find anything. This is just the power amp. It has no preamp in it. From what I know is that there are 4-6550 tubes in it and it is rated at 200w, but I have no idea at what Ohms. I think it was made somewhere in the 1990 range, but am not sure about that either. They were expensive. Somewhere in the $1000 range back in 1990, but again, not really sure. Can anyone shed some light or any information on this? I did get a service manual from Peavey, but it is mainly for the preamp (same as the G12 pre), but mine does not have a preamp in it. It is just the power amp.