The ABI Balanced Line Output Switcher from Palmer can be used to route a signal to one or two possible outputs. Three slide switches select 15 dB of attenuation for input A, and 6, 15, or 21 dB for input B. A ground-lift switch eliminates the earth-loop hum and a red LED indicates the active output. Additional features of the PEABO include two-room signal routing and the ability to switch your mic between the FOH and monitor mixing-desk for communication needs. Two different sound configurations can also be created by running the outputs of the PEABO into two channels of the mixing desk which can then be toggled between on-stage. The switcher features a solid metal casing with extended edges for protecting the inputs and outputs. Pre-drilled holes can be used for mounting the unit into a rack or onto a pedalboard.