Palmer PAL-PEABI MI ABI - Balanced Line Input SwitcherThe Palmer PEABI is more than a simple switcher for two sources, it also provides level adjustment of microphone or line signals. Whether microphone or line signal, the PEABI toggles silently between the two inputs permitting fast and simple signal comparison and the connection of two sources to one input. 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 earth loop hum. The