“I have to say that this unit does the trick very nicely and for very little money in the UK. And of course I’m going to have to buy this one because I don’t want my hum back!” – Sound on Sound

The CleanBox II removes ground loop noise without any signal degradation.

It features two channels, 1/4” TRS inputs and outputs, and a passive design that doesn’t require external power.

When ground hum interferes with your signal, the CleanBox II is a simple and compact problem solver.

Features

• 2x 1/4″ TRS Inputs
• 2x 1/4″ TRS Outputs
• 2x Isolation Transformers to Remove Ground Loops
• 0.01% THD (Typical at 1 kHz, +18 dBU)
• Passive Design – No Power Required