R-40PM - Connecting to Turntable
The R-40PM Powered Speakers can be connected to a turntable with or without a phono-preamp. See the image below for more detail.
NOTE: If you are using a turntable WITH a phono-preamp, set the switch on the back of the R-40PM to "PHONO". If your turntable does NOT have a phono-preamp, set this switch to "LINE".