Hi all
Just thought I would mention that the other day when I strummed my Heritage AC30 whilst plugged into the ef86 chl with the volume right down I had sound coming out of the speakers and then realised he top boost volume was up and quickly realised the ef86 was leaking into the top boost chl..
I waggled the guitar lead plug in all the input sockets and it reduced the volume to almost nothing (still a very slight crosstalk though when top boost volume up full) and all appears to be working normally.
Have spoken to Amanda about the problem and the view is that the input jack sockets are the likely reason for this crosstalk should your own amp have similar issue.
Just so you are aware . Does the problem happen on older vintage AC30's AC15's ?