really there is nothing wrong with your Teac CD-P650 in it's price range. Put simply it does the job.
But then you wonder off into the HDMI world, in the hope that the sound can be improved, The fact that the Teac does
not have a HDMI connection completely escapes your thought process. HDMI was never designed for Audio, It simply
piggy-backs of the Video signal.
Get away from your junky AVR, and use a dedicated integrated system, for better performance. with zero HDMI connections.
Just ask Mr Quad, [ TLS ] Why his sound system does not use HDMI. The better quality audio gear has no use for HDMI,
Just for the record Quad does not have a model using HDMI. My main system is all Cyrus, It's a 6 unit system, and like Quad
has zero use for HDMI.