I put a Full Circle pickup on me Eminence EUB and now my HPF3 started making an overdriven fatty sound on notes below the low G. When I bypass it and go straight into my Clarus, no issues. The low battery light isn't on on the HPF3. Am I over driving the HPF's input maybe? I usually have the volume on the HPF all the way up btw. Thoughts would be much appreciated. Thanks.