Join Date: Oct 2005
Location: Amsterdam, the Netherlands
very soft 'hum'-noise coming from bridge PU (CrunchLab7)?
I just finished installing the Liquifire7/CrunchLab7 combo into my Sterling JP70 7-string with a push-pull pot to enable splitting of the PUs.
I noticed when I switch on the bridge HB/CrunchLab (in humbucker mode, ie not split) there is a very soft humming noise coming from the amp which is not there when I switch to the neck humbucker.
The hum is only noticeable when the amp is set to a distortion sound, on a clean sound I can't really hear it.
Would this indicate that I did not ground the PU ok?
The hum is not very loud, but what baffles me is the fact that it's there when I activate the bridge humbucker but there is no hum at all when I switch to the neck humbucker.
Or is this slight amount of hum normal on the CrunchLab7?