I have the A8 and it’s the best sounding digital source I’ve ever had. Have all my CDs on the internal SSD. Makes for a very convenient way to access all my 400 or so CDs. High rez streaming from Qobuz sounds great. The DAC settings are subtle but there. I had tried the Wiim pro and thought it sounded pretty bad. The A8 DAC chip is advertised as "velvet sound" and it does indeed sound smooth but still has detail. Only thing I didn’t like was the analog in side with my phono pre amp - seemed to lose some air - so I just use the A8 as an input to my Schiit Saga pre amp.
Yes, lower resolving audio systems/speakers using lower rez streaming, one might not see a big difference between it and lower price/quality sources. I think variations in digital sound quality between various components is generally not very great. Digital isn’t vinyl. Vinyl is still king even compared with the highest rez streaming available. Although the 24/96 from Qobuz sounds really really good. And Tidal has very little of that compared to Qobuz.