The StageBug SB-6 is a two-channel passive audio isolator that can pick up both balanced and unbalanced signals and effectively eliminate interference when used with instruments, consumer devices, or professional line-level devices. Two built-in isolating transformers provide a flat frequency response from 20Hz to 20kHz, while hum and hum are removed from ground loops. Two ground lift switches help further reduce noise, and a -15dB pad allows you to handle high volume levels without distortion. When using the SB-6 with powered speakers or guitar amplifiers, a polarity reverser corrects the frequency suppression and ensures that both speakers are in phase. The SB6 is completely passive and requires no power, so integration into any system is easy.