As technician i've put my hands for the first time on a Les Paul Recording. The wiring looks like ok and the components in good condition, but the decade control differences are inappreciable, and the bass control make a enormous volume loss. I've tried also connecting the guitar in low impedence directly to a recording desk, no difference.
I've not been able to find good information about this aspect, and i'm not shure if the instrument is a defective one or if is a sort of model's compliant issue.
Maybe somebody here can help me to know more about? 😊