+1 to the post by AUXINPUT
Your source (and your resulting audio performance) can be significantly upgraded with a quality build upgraded 2-channel digital unit.
I had the very top end CAMBRIDGE Bluray player that shared the same motherboard as the OPPO. It was fine for HT but it was handily bested for 2-channel audio performance by my discrete high-end build CDP/DAC. The improvement was not subtle.
Your source (and your resulting audio performance) can be significantly upgraded with a quality build upgraded 2-channel digital unit.
I had the very top end CAMBRIDGE Bluray player that shared the same motherboard as the OPPO. It was fine for HT but it was handily bested for 2-channel audio performance by my discrete high-end build CDP/DAC. The improvement was not subtle.