Follow up:
The sound was caused by a Raspberry Pi streamer that was nearby. It caused the sound when it wasn’t even connected to the Lamm. Selling that streamer right now.
Squeaking/Paper Crinkling Noise Coming from Lamm LL2.1
Can someone suggest what the problem may be? Hearing noises in quiet passages and with no source playing through my Lamm LL2.1.
Noises are equal in both channels. I've swapped out all the tubes. Replaced the cables. Still happening. Doesn't change with volume level.
Ugh. Lamm is so bad with repairs.