This 2 button lighted foot switch works for the Fishman Loudbox Artist and Performer (brown) only. Button 1 mutes both channel outputs, while letting the Aux input continue to function. Button 2 mutes either or both FX B functions, if they have been previously engaged on the amplifier.Get your Fishman ACC-LBX-FSW Dual Foot Switch for Loudbox Amplifiers today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.