Sound Skulptor forums
Build help and troubleshooting => MU524 Vari-Mu Tube Compressor => Topic started by: Pierro on January 15, 2026, 09:21:00 AM
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Hello JPK,
I built my 524 few month ago and it works perfectly when i send it line signal but adds a LOT of hiss when i try to record through it, so much that it's unusable this way. The is is just white noise.
Set up: microphone -> 1073 preamp -> MU524
Bringing up the input doesn't add noise but the output on 0 is already too much and bringing it up just adds more hiss.
Do you know what could be the issue?
Thanks a lot