As others have said, your current dac measures outstanding. I doubt it is doing anything wrong. I have read about using Amazon HD music with a PC and as I understand it, it can be challenging to get the best sound out of that software combo due to Amazon not taking control of windows and that leading to likely upsampling or down sampling unless a setting is manually changed at each reboot and for each changing in song sampling. I may get more bang for your dollar by looking at a streamer. The HiFi Rose (two versions) seems interesting and you can still your existing dac or use its internal dac. plus, you can move to Qobuz, which should provide better source quality. Others who know vastly more can comment.
How do you make a final decision on a DAC
Thank you all for helping me along the way. I've been trying to decide on a DAC for my 2 channel system. I listen to JUST R&R 60's, 70's, 80's more or less and stream from my windows based Pc Via Amazon HD (which I really enjoy) loudly currently through my Benchmark DAC 3B, and my Audiolab 6000 Transport. Associated equipment: Should be here this week after waiting 7 months, ATI amp, 6002, Benchmark Line amp LA-4, Tekton SE Double Impacts and an SVS sb 4000 sealed sub. Really enjoy. A ceiling of 5K is somewhat available, # 1 choice is Denafrips Terminator 2, (a little nervous as once you order it's yours) Audio Mirror Tubadour 3 SE, Aqua La Voce 3. Don't really want a preamp/Dac combo, just a DAC. Listen in a very large shop area with great acoustics. ( just by chance.
Any suggestions would be greatly appreciated. Pulling hair out at this point, what little there is. Thanks as always Robert TN ps service is a big priority!!!!