Not sure what you mean, but yes the 980 outputs a dedicated center channel signal if it's fed one from the DVD player.
Rather than switch to the 976 and use its DAC to process the audio signal, you might consider buying a good used outboard DAC that would probably yield much better overall results when playing CDs through the 980 (depending on the DAC and digital cable of course). I used the 980 for many years and it's certainly transparent enough to benefit from a higher-quality source signal.
Best of luck and hope this helps.
Rather than switch to the 976 and use its DAC to process the audio signal, you might consider buying a good used outboard DAC that would probably yield much better overall results when playing CDs through the 980 (depending on the DAC and digital cable of course). I used the 980 for many years and it's certainly transparent enough to benefit from a higher-quality source signal.
Best of luck and hope this helps.