JHS Little Black Amp Box Signal Converter Tames a screaming loud tube amp by running through the effects loop and controlling the amount of signal sent to the power section ^^ Lets you really push the front end of your amp for the natural feel and tone that you can’t get any other way ^^ Retain the response and tone of your amp’s sweet spot at lower levels ^^ High grade components keep your tone clear and pure ^^ Passive design doesn’t require any power ^^ Designed to be compact, sturdy, and simple to integrate into your rig ^^ Can easily be mounted underneath your pedalboard ^^