[quote name='Osiris' timestamp='1507028656' post='3382798']
Everything is quiet as a church mouse with my set up (bass - Boss tuner - Spectracomp - amp) using the MuscleComp TonePrint.
Have you got anything else in your signal chain that might be causing the noise, or causing the SpectraComp to amplify the noise?
[/quote]
I have an A/B input box that lets me switch between either using a cable or my Smooth Hound Wireless. So my chain is bass>cable>A/B box>Spectra OR bass>wireless>A/B box>Spectra. Either way the hiss is present on certain presets. I only really notice it through headphones via a Phil Jones BigHead though. When playing through speakers it's much less noticeable, though still present. Having read up about the TonePrint settings on the Spectracomp, it sounds like a setting called "Auto Makeup again" could be the culprit.