Audiophilepure

https://www.soundstagehifi.com/index.php/equipment-reviews/2048-simaudio-moon-761-stereo-mono-amplifier

I also think the 761 is the amplifier most people should buy if they’re considering Simaudio’s North Collection. Although I haven’t heard the 861 in either of my rooms, I have little doubt it would be the better choice for loudspeakers that genuinely require more power than the 761 can deliver, or for buyers who simply want the flagship model regardless of price. For everyone else—including me—the 761 is no less compelling. Its output is more than sufficient for most loudspeakers, and it’s difficult to imagine meaningfully improving on its sound, whether at whisper-quiet or high listening levels. Throughout my extended evaluation, it remained transparent, authoritative, completely in control, and flawlessly reliable. Add Simaudio’s ten-year warranty, and the 761 becomes an amplifier I can confidently recommend to anyone seeking reference-quality sound for the long haul. It’s a great amp—and a keeper.

The sonic benefits conferred by the aR6-T4 were made more readily apparent with its removal from my system. With all components plugged directly into the wall, the soundstage shrunk, dynamics flattened, and there was a coarse grit that overlaid the overall presentation, leading to less verisimilitude, which, in turn, engendered less musical involvement. And, as good as the aR2p-T4 is, especially at its price point, the larger aR6-T4’s performance improved upon that of its sibling with greater transparency, enhanced soundstage recreation, and improved rendering of dynamic contrasts. These differences were subtle, but experienced over time in a system tweaked for resolution, they became difficult, impossible even, to live without. 

Musical enjoyment is a gestalt experience, where minute and disparate factors combine to create an end result that transcends the components involved in its creation. As a music-playback system becomes more resolving, even small improvements begin to have outsized impact. Audience’s aR6-T4 wrought such an impact to my system’s performance, proving that the subtle can be profound. Well done.