In this video, we demonstrate why your tube amp might benefit from a load box attenuator. There are many units out there from the Universal Audio Ox Amp Top Box, Two Notes range, and the Boss Tube Amp Expander to help you get the most out of your valve amp. In this video, we use a Marshall SV20 which is Marshall's studio Plexi to demonstrate the difference between having an attenuator and not. The Studio Rats are core band members Paul Drew on guitar/production/mixing, drummer James Ivey and Dan Hawkins on bass. They collaborate with singers and musicians to produce radio-ready songs.