After I swapped my N-Core/NAD M51 for ST-10/10H, I was very pleased overall, but felt the sound could use a bit more air and extension on top. My former stack was more forward on top, although not quite as clean as the NuPrime. I turned up my ambience tweeters some to compensate somewhat.
For digital input cabling I had simply used the digital coax I had been using, the $500 list Wireworld Gold Starlight 7, which was the best of many digital coaxes I'd tried over the years.
I thought I'd mix it up a little and bought the similarly priced Acoustic Zen Absolute 75 digital cable after reading descriptions of its "sound". I must say that it was a nice improvement precisely where I wanted it. Now beautifully airy and finely detailed at the top. I have some recordings that have some great cymbal content, played with mallet, stick and brushes in sequence and the tonality, shimmer and definition is the best I've had here. Other content, such as violin, bells, sibilance, etc. is similarly now just right. I've turned the tweeters back down and just love the balance and openness.
The Wireworld has zero crystal silver conductors, and the AZ has zero crystal copper, with much different construction. Usually silver is considered to be the brighter, but not so in this case. The benefits of this kind of fine tuning is not transferrable from system to system, of course, but it illustrates the great resolution of the NuPrime gear, and the possibilities for really dialing them in to taste.
BTW, I'm using ZenWave D4 balanced ICs between the units, and they continue to deliver the goods big time.
