For questions relating to electrical sub-systems of many common musical instruments, as well as to aspects of professional audio amplification.

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12
votes
2answers
14k views

Guitar produces hum due to poor soldering

Is it possible that a guitar could produce a low hum after replacing a pickup? I own a guitar that I (poorly) replaced a pickup on when I first started playing, and I was wondering if there was some ...
14
votes
1answer
6k views

What changes in the amp when I adjust its presence?

The tone controls on a guitar amp are pretty obvious, but what does the presence knob affect? It's a subtle effect but can sure make or break a sound. It doesn't seem to be treble or midrange boost, ...
8
votes
2answers
1k views

What are Tone Pots / Potentiometers?

Can someone please explain to me what tone pots are, and how they affect the sound of a guitar? Thanks very much :)