I'm not salesman, just a senior audiophile and I have decided in recent months that I'll never go back to conventional AB
amps since its prehistoric technology going back 50 tears. The subject here is currently the worlds finest Class D amp in its price range and beyond, right behind Patrik Bostroms' massive Class D Marten M amplifier. I wouldn't waste my time with Brunos' Mola Mola Kaluga, since the Nuprime technology is newer and has moved further on. The Evolution One has technology that is a first in the industry. Ten years ago, the real problem with Class D amps and today as well, is that their transistor switching modulators operate at a frequency around 300khz which is to low causing feed back problems to the upper frequency's resulting in cold hard sound from the tweeter. Brunos' Kaluga switches at 500khz which is still not good enough, resulting in the Evoultion One being the only Class D amp in the world to switch modulate at 700khz. Also, the only Class D amp on the market with an input impedance of 1 million ohms. Phew! So the issue of working with different Preamps is redundant and completely irrelevant and will work perfectly with any Preamp on the market, tube or solid state. Their switching amps are custom designed in house and are patented. For those concerned about speaker 2 ohm impedance loads read the recent review in Totally Wired where the Monitor Audio Studio's were used and are 2 ohm loads and the amps ran cool. Also, legendary circuit engineer Demian Martin from Spectral has been an ongoing consultant for the company. 


bill_k...good point which is quite common with reviewers who also happen to be dealers. The link at the bottom of the review has other reviews that are very positive as well. The board layout of the Evolution One is very well done, well organized in the different stages and very clean. Typical of Demian Martin. 
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 select-hifi.." was still stuck in my memory " ..know exactly what you mean. Sticks to you like glue.
I'm a gonna place this post elsewhere ...and put this explanation here instead....

I’ve has my eye on a Tortuga XLR passive pre, though I think a buffer is an option

Gfi said:  even tweak1 did a better job with his EVS thread.  ROFLMAO! I was wondering if you would pick up on his absolute shilling and compare it to my thread, which FYI is not shilling.

I had ZERO relationship with Ric, paid the same price anyone else would. My motive was pure. I merely wanted to help out a cottage industry guy who has no means to financially promote his excellent amp. Post purchase and now a fanboy, I have suggested he take advantage of free Hi-End News spots, available on most high end e-mags