Time to buy a class D amp?

I did not understand what kind of patent is this as class D amps are widely used for already more than a decade. 

Meanwhile, I have some class D updates and can share my first (still superficial) impressions on a class D Cherry MEGAschino  amp (a demo stereo version). I got it recently from  Tommy O from DAC (Digital Audio Company) together with a (demo)  DAC SHV 2 with volume control. 

Let me note that MEGAschino  is not a typical representative of class D: it is quite heavy (about 20 kilos), not as small, it does get hot (not extremely hot) and costs a few times more than an average class D amp. So nice characteristics of a class D amp are not present in this amp, which is based on a module  designed by the same company (DAC). At the same time, it gives a detailed, clear non-wax and non-frozen music reproduction. I can even say that the sound quality is more alive and detailed than that of  may class AB amps, a surprise for me. Roughly, it sounds like a good solid state class A amp while gets less hot and is still less heavy. Again, these are my first impressions that might be completed or/and altered later. 

At the same time, i am not impressed with DAC SHV 2 (about $1500 new). It has a single digital input. As a (passive) preamplifier, it was not so efficient with MEGA -- the sound had no dynamics. As a DAC, it is slightly better than PS Audio Gain Cell (slightly more soundstage and definition), but Gain Cell costs the same and is also a real preamplifier (with enough number of digital inputs, several line inputs, coaxial, optical, USB etc). 

Currently I use $650 Nuprime  HPA 9 headphone amp with MEGA as a preamplifier, with very positive results (although HPA 9 is class A). My desire to stay in class D is not (yet) fulfilled. Though  in terms of ratio performance/price  MEGAschino may not beat other class D amps, in absolute terms, it is a very good sounding amplifier. I hope I will stay with it in my main system. 

Let me note that MEGAschino is not a typical representative of class D: it is quite heavy (about 20 kilos)

Because it has a linear power supply using a massive toroidal transformer, which to me is a good thing, never been keen on noisy switch-modes no matter how well built.

Patented and proprietary circuitry designed in-house. Could be good, no off the shelf stuff like many others use.
Still nothing on how it handles 2ohm loading and if it’s got good current drive down that low (increasing it’s wattage a lot from 4ohms)

https://www.cherryamp.com/dac-home

Cheers George

Class d is the big girl with the pretty face, or the chain smoker with nice legs.  

In a Class D amp this would only describe how loud it plays at 2 ohms without sonic impact not much else. Damping factor at the frequencies where impedance drops is far more important.

Still nothing on how it handles 2ohm loading and if it’s got good current drive down that low (increasing it’s wattage a lot from 4ohms)

Could we combine  pretty face with nice legs without chain smoker in class D? 

My speakers (Thiel CS 6) go down to 2.5 ohms at 8 kHz, the output impedance of Megaschino is measured at 10  kHz. I did not note any damping problem though am a bit surprised with the power issue.
Supposedly it gives over 600 watts at 4 ohms, that i do not really perceived  (I feel it gives about half of that, though its power is quite sufficient for my needs).