If your amp has a series effects loop, the JHS Pedals Little Black Amp Box takes care of the job while being able to fit into the palm of your hand. You’ll love the way the Little Black Amp Box lets you really push the front end of your amp for the natural feel and tone that you can’t get any other way.
Purchased to use with a EVH LBXii with terrible volume taper and unusable fizz at lower volumes. Works surprisingly well so tried on my studio classic jcm800 with equally good results. Would recommend this item for home use taming louder tube amps with FX loops.