Well it seems like my GK over the past several months is starting to distort and clip the power amp much easier then in the past 6 years ive owned it. Last practice I really noticed a drop off in low end as well (run it bridge mono). And the power amp will even clip at about 11 o'clock volume pluged into my 2 Avatar 2x10 pro's. I know these heads have had problems in the past, but does this sound like the typical ready to crap out scenario? Should i send the head back to GK or find a local service guy in the LA area to fix it? Good thing is I found a near new cond. 94 SWR basic 350 for $270 out the door and I bought as a back up, or maybe it will be my main amp? Thanks for any info!