Opinions on Nuprime vs D-sonic vs Red Dragon vs Class D Audio


I'm looking to try a class D based power amplifier. Please share your experiences with the NuPrime, D-Sonic,  Red Dragon or Clas D Audio lines of power amplifiers. Thanks!
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Thanks Kenny. I've been participating in that great thread, but I felt bad about going off on tangents so I thought I'd ask it separately. I still may pose the question there though!
This is a question I would like to know the answer also. Hopefully, someone had a chance to compare.