Unfortunately not. It sounded good on paper, but grounding (via a spare phono - there are no case screws to unscrew) to either the knurled knob on the back on the amp, or to the mains via an ECD plug, seems to make zero difference.
At the whisper-quiet volumes I usually employ it’s still quite audible, and with the volume at 12 it sounds like a wasp in a matchbox.
The Sonos, by contrast, is quiet as the grave, apart from the actual music obvs.
Shame. As Sir has no need of a phono stage, Sir needs a Rega Aethos which is a big propulsive bastard of a thing which has a conventionally grounded input board.
Sir already knows this and is just going off to self-administer a huge punch in the cock.
When Sir originally bought the Naim he demoed it, a Supernait and the Aethos. He liked the Aethos but was eventually put off by the brute weight of the thing (do I really need something this nasty?) and the aggressive-looking backplane (when I’ll only ever be plugging one thing into it).
Umm, this was obviously over a year ago, but the main thing I remember not liking was the 50% increase in price over the Nait versus little perceivable difference in sound.