I recently have had several opportunities to seriously listen to the new NuPRIME IDA-16 in a system I am very familiar with.
I have been very impressed with the amp overall.
It definitely has a great tone, and dynamic quality.
The most remarkable qualities are how quiet it is, so the sound just appears out of the blackness, and the soundstage and imaging it creates.
Of course it is as detailed and resolving as any amp I have heard, and the bass is also at that level.
It is surprising how powerful it feels from such a small size and footprint, running the huge tower speakers to quite high spl's without a hint of stress or strain.
Diana Krall, Josh Groban, and Andrea Bocelli all sound real and lifelike to me.
I have it on my list, or the DAC-10 front end when it is available.