The Little Labs PCP is a premiere-quality instrument distribution and matrix, with a high quality direct box for your instruments, 3 line level instrument inputs and three reamping instrument outputs. Audition different amplifiers on the fly, or send drum and vocal tracks out to amplifiers to give them some life and distortion from your favorite guitar amp. Drive super-long instrument cable runs with the line driver out on the rear panel to send guitar signal from the control room to the live room a hundred feet away. The PCP is an amazing, expandable multitool for both the stage and studio.