Hi. I'm having a problem with my DSL5CR. When plugged direct into the amp and switched to the Classic gain channel it works perfectly. However, when switched to the Ultra gain channel, the guitar is very faint and what can be heard is a weak-fuzzy sound. When I first noticed the problem, I thought it was a case of the tubes needing to warm up, as after 30 seconds the level would gradually increase, unfortunately the problem has got worse. Could it be the pre-amp tubes at fault? 

Thanks,
Steve

I own a Code100 2x12 combo, and after a couple of months of use I am now dealing with some very noticeable fuzz and crackling. It does not matter what volume I am at... 

Things that I have tried...

*Firmware update
*Using a distortion pedal and changing my preamp to clean as well as acoustic.
*Performing a factory reset

As you can imagine I am pretty frustrated... Has anyone else dealt with this issue? If so...what is the solution, please and thank you...