Buzz typically emanates from speakers, many a time as a result of a ground loop. A ground loop occurs when there are differences in power supply between audio equipment. ... Sometimes, the shield may have a bad connection to its ground, and this could be the source of amplifier humming or buzzing.
How do I stop my car amp from humming?
Amp: Install a RCA cable filter into your amp. One thing you can do is put a filter on the RCA line to your amp. This is an easy way to reduce noise introduced in your system if you can not organically find and fix the issue. It is important to get but a quality RCA filter to effectively de-noise your RCA line.
How do you fix a buzzing sound in a car speaker?
Fixing the buzzing in the speakers in your car can usually be accomplished by repairing the damaged area with rubber cement. Remove the speaker cover by removing the retaining screws or clips, if so equipped, and gently pry off the cover. Clean the membrane, carefully, with a damp cloth.