The problem is that in order to get the EQ in the signal chain, your receiver has to be set to the "Tape" input. But once it's set to that, then you can only listen to a device (CD player, tuner, whatever) that's hooked up to the EQ. This is because your receiver lacks a tape loop. Now, since your EQ has both a main input and a tape input (as part of its tape loop), then I believe you could actually connect TWO devices (e.g. CD player and cassette player) to your EQ and listen to either one of them, with EQ, through your receiver - using the EQ to select between the two devices. But since your tuner is built in to your receiver, and since a turntable requires the special phono input on the receiver, you still could not use the EQ to listen to the radio or to vinyl.