OK, my Sony TA-E9000ES Pre-Pro receives: analog stereo from Tuner, Turntable, Compact Cassette Recorder, DVD Player, Universal Player, and DAT Recorders, as well as, digital stereo from CD Player, DAT Recorders, TV or PC via OPPO 205 usb B, External Sound Card, or Airport Express. The Pre-Pro feeds a 5 channel Sony TA-N9000ES Power Amp.
My Sony TA-P9000ES Multi-channel Preamplifier receives 5.1 analog form OPPO 205 via Thumb Drive, Disc Drive,, usb Drive, Network, or HDMI connection to PC. The Preamplifier is feed to the Pre-Pro's bypass to Power Amp. So, two preamps running one power amp.