Free The Tone - LB-2 - Loop BoxThe FREE THE TONE LB 2 is an expansion loop box developed to control various signal lines. The LB 2 can add loops to the ARC 3 or ARC 53M (two additional loops) or provide effect loops for an amplifiers send return. With two separate loops, it can be utilized in six ways, as an input selector, output selector, etc., depending on how it is connected. The FREE THE TONE LB 2 enables to make your sound system more flexible.