@fthompson251 I can see how it is confusing because they are both “200”. The A200 has pretty much the equivalent of the $3500 N150 streamer only architecture with added DAC, whereas the A15 has the equivalent of the N200’s streamer only architecture. Overall, the N200/A15 has a much improved and robust linear power supply, better isolation, and better circuit design. On the analog output stage of the A15, the implementation is also slightly better than that in the A200 while also offering true balanced outs, where the A200 is single-ended only. What this means is the A15 & N200 has more of the good stuff - body, texture, coherence, and larger soundstage, all while being less fatiguing and “digital-sounding”. It’s enough to make a substantial improvement in my opinion, a true step above, which enables it also to be a more future-proof solution compared to the A200/N150 tier
I hope that helps. Let me know if you have any more questions.