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Description
LEARN ABOUT THE BROWNBOXNote: The BrownBox and BrownBox II have been merged. They are now the same product. You can now use the BrownBox with 120v amps in 50/60 hz countries.
WHAT IS THE PROBLEM AND WHY IS BROWNBOX THE SOLUTION?
Today, w...
Reviews
5.0
17 ratings
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Should've gotten this sooner!
This is a "must have" piece of gear. I was getting ~123v out of the wall, which was not ideal for my modern stuff, and even worse for my new-to-me pre-CBS Bassman. Glad I got this; now I run it every time I plug in.
J
Joshua · May 5, 2026
I’m thrilled with it. I’ve resisted getting one because I didn’t want to carry another device around, but it really sweetens up the tone of my amplifiers. I wish I’d bought one years ago.