Line6Perry

"First step is to quickly find out if this is potentiometer "jitter" related or if it's further on the mainboard.   The way to test for pot"

"Yes, it sounds like the battery will require replacement internally!"

"Many DL4 users with sufficient electronics/mechanical background have been able to order replacement TAC switches: https://www.globalfulfill"

"Get the LowDown 300's DI output circuit diagnosed and serviced would be the best option if you like the amp. It's probably not too complicat"

"The Panner effect model is based on a low frequency oscillator (LFO) controlled autopan. I don't believe there will be a change to that mode"