This product (A wall plate version of our popular pcDI) is perfect for interfacing the outputs of CD players, computer sound cards, iPODs®/MP3 players, tape decks, etc. with professional, balanced, low impedance equipment. This unit contains two separate DIs - input your signals with one 3.5mm (1/8") mini TRS stereo jack, color coded RCA phono jacks or 1/4" TS input jacks. The RCA and 3.5 mm jacks are wired in parallel if a through connection is required.Outputs are on the rear via 3.5 mm screw type removable plugs (Phoenix 1984329 or equivalent).