Sabine FBX Solo SL-620 1/4" Connector Feedback Exterminator w/ Box and Adapter PreownedWelcome, you are looking at a great piece. This is the Sabine FBX Solo SL 620 Feedback Exterminator. The SL 620 is the 1 4" feedback eliminator, so it can be used with guitars, basses, and other instruments that utilize a 1 4" jack. This FBX Solo is in very good overall condition typical marks from normal use. Tested and works as it should. Includes original box and adapter. This is your chance to get your hands on a noise reduction unit from one of