I have the Sonetto V for almost 4 month now powered by the MA 352 hybrid amp and RS 250 DAC with a Rel T9X sub. I am really satisfied and everybody who listened them in my room was impressed. These loudspeakers can play very low with a lot of bass. I am a bass head so, I added a t9x in high level connection just to support the low frequency sonetto which they work in full range. I am really happy with my setup. I added the GAIA III and this little tweak increase the Soundstage and clarity one step further. I think the Sonetto like using tube preamp. I had the Nad C298 with Nad C658 on the Sonetto before my actual setup I did not like sound quality.
I listen jazz, rock, techno, blues, metal.
Strongly recommended for a hifi system.