Hypex N core module

Anybody have experience with Nord Audio N-core power
amplifier ? The use own buffer module https://www.nordacoustics.co.uk/products 
and say the  Using Nord Input Buffer Boards (Full Specifications and Op Amp Sound) with high end discrete Sparkos Labs Voltage Regulators and a choice of Sparkos Labs SS3602 or the Sonic Imagery 994 discrete Op Amps both run in full Class A. And offers a richer, warmer, tonally dense musical sound with greater sound stage while maintaining all the benefits of the standard amp. Superb bass control with sweet high resolution mids and treble.

In what would be considered a "relatively affordable price range"...what is that then differentiates the Nord Acoustics from a PS Audio Stellar 300 from a Merrill Audio Taranas from a Benchmark ABH2 as they all have been given accolades for great sound at less than the price of a small car??

@snapsc 
 
Check all prices on Nord site, the multiply 1.3  plus  $ 100 shipping
and VAT  , it may be custom charge, 

PS Audio Stellar 300 is not Hypex N-Core , the get MOSFET output
stage,   Benchmark ABH2 is Class D , but dont mention which
module they used , i think no N-core.Just only Taranas  from Merill use
N-core, The sound excellent 

@merrillaudio +1

In the future when technology allows the switching can then be much higher to allow the output filter to do it's job properly and cut out all the switching frequency noise without effecting the audio band.

This statement is false. The filter can do its job properly at current frequencies. There is an advantage to going to faster switching frequencies- lower distortion. But by switching faster, you either have to have faster and more expensive output devices and deadtime to allow the outputs to switch. Deadtime increases distortion. So there's a bit of a carrot that is being chased.

@merrillaudio  would you be interested in a circuit that bypasses the need for deadtime?