Eric Natural
Active Member
Filed under the category of "if it ain't broke, don't fix it"... Best option is probably to continue to enjoy the 3100ES which is performing well ...
If you're getting satisfactory-sounding movies & music with your unit; there's no need to upgrade. My previous Sony(DA2100ES) was a generation or two behind yours and still sounded strong until I felt we needed the Atmos here. For me; the DSP in the new one really opened-up the room even w/just 5.1 channels. I'm nearly a year using the AZ1000 and continue to be impressed.
Best of Luck