Output jack S12B
Output Jack for Guitar at DC Music. Thank you for your interest in the Output Jack for Guitar. Output Jack for Guitar. Also referred to as an input jack, but is an output jack because it sends sound out of the guitar and into the instrument cable. Mono. If you're sound is cutting out, the most common reason is a bad output jack. A bad cable is another reason your sound would cut in and out, but if you've tried different cables and the problem is still there... it's probably due to a faulty output jack.