What is a guitar audio jack called?
1. The 1/4-inch (Quarter-Inch) Jack Connector. Perhaps the most common connection to be found on musical equipment, the quarter-inch jack is the type of connection that is used on electric guitars and guitar amps.
What jack does a guitar use?
The most common output jack for electric guitars is the mono jack. It has two lugs: One is the ground, and it's part of the jack's interior or case. The other lug is the hot or primary lead. This lug is part of the long, bent flange that connects to the tip of your instrument cable.