NAD M27 or M28


I have several questions as I am looking to purchase one of them.

1. Has the M27 been a reliable amplifier so far? 
2. I have used Parasound Halo amps. Do the NAD's compare favorably? 
3. Is the Purifi module a significant improvement over the Hypex NCore? 
4. ETA on the M28? 
texaus
Op the nadd amps Arengenerally Reliable bu tgive that nad  is a large volume company I would onlyy buy from an athorized dealer


The nrew  purefi sinodales are a hige improvementover n core


Dave and troy
Audio intellect nj
nad masters dealers