I had a similar problem once with a tube preamp. Static-like noise. Put in backup tubes, still noise. Had to ship preamp back across country to the builder. Problem was with a small inexpensive capacitor. Quickly fixed. Prior to this I already had a backup preamp (and amp, speakers and cartridge). Gotta have those backup components! Also, I recorded the static with the phone up against the speaker and played it over a call to the builder prior to sending the preamp. It helped trouble shoot the issue before I even shipped it per the builder.
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.