Yes oh yes. This really matters. You can actually tune your perfect center image through adjusting delay of one side.Check the delay settings on your AVR. If both channels are not identical, the result will be an extremely poor phantom center/imaging. This is worth checking even if you believe the problem to be solved.
Using this to help:
Edit: also I’d like to add that every time you sit you may prefer a particular posture or seating style. It may take you slightly off perfect center. So you can use digital delay to help with centering the image perfectly for a listening session.
A purist may say adjust your posture or move the speakers instead. Can’t do that every time. Would rather let my comfort dictate my posture.
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