Adding Center Channel


I currently have my 2 channel providing the Audio for my projector. Unless I turn the volume up significantly the dialog is too low. I was told adding a inexpensive AV Receiver and center channel would help, so I did. I purchased a Marantz NR1607 and Monitor Audio Gold center channel. The NR1607 is used to drive the center channel only. The problem is I hear dialog through my main speakers before I hear it through the center channel. It almost sounds like an echo. I've tried everything and I can't solve the problem. Is it because I have two different amps(1 driving the main speakers and the AV receiver for the center channel)? I've contacted Marantz and Oppo via the phone and they couldn't resolve the issue. Any suggestions?
ricred1

Showing 5 responses by tls49

Then the Marantz front preouts connect to HT bypass input on the preamp and analog output of DAC connect to an input on Marantz, correct? If this is not correct, can you please describe the connections between the Marantz, preamp, Oppo, and DAC.

Connect the Marantz front preouts to the HT bypass input on the preamp. Then when you select that input, the Marantz VC controls volume on all speakers. Even though sound quality of L&R may not be quite as good as before, the sync problem should be eliminated.


How are the source and amps connected? Does the 2 channel preamp have a HT bypass input?

Sync problem is being caused by your connections. You have created two different signal paths for the 3 speakers.

Oppo HDMI output > Marantz > Center Speaker

Oppo Optical output > DAC > Preamp > Amp > L&R Speaker

The issue is not using different amps, but using 2 different outputs on the Oppo. Both amps must receive a signal from a single output.