Will that do something that the master volumes won’t do? I guess if it’s tricky to set the clean and lead channels relative to each other and you want a single knob to control overall volume.
The amp's pretty loud even if the master volume level's set to 1. I wanted to retain the amp's response and tone without lowering the volume so I thought having an attenuator would do the trick.
the JHS black box isnt an attenuator, it's a volume control
I have to read through again the manual - you're right it's a volume control. Thanks for pointing it out.