NUPRIME EVOLUTION ONE-BEST CLASS D AMP ON THE MARKET


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. 

                                                            
                                          

                                                              
audiozen

Showing 3 responses by snapsc

Cherry Amps have been well reviewed for their sound characteristics... here is an interesting article... they have switching frequencies up to 2mhz and bandwidth.. depending on the amp at either 100 kHz or 150 kHz. 


https://positive-feedback.com/interviews/tommy-obrien-digital-amplifier-co/
 I’ve never found a “spec wars” type of discussion to be very persuasive as there are always areas where either side can come up short.  It is slightly more meaningful when a number of people... more is better... provide detail on their personal experience with the product as you may see something that applies to your situation. 


From a spec standpoint... here is the evolution one vs the cherry megaschino... scroll down about 1/3 of the page... and to be clear, although I am a cherry fan... these specs tell you nothing about how either amp will sound in our home systems... only trying them will. 



https://www.audiocircle.com/index.php?topic=161765.0

@rocray


It might be more accurate to say that no matter which topology, the final sound is based on the ear and the voicing of the designer.  Here is an interesting comparison of one of the Pass Labs amps with one of the Cherry amps.... and, I for one feel that the preamp-amp-speaker synergy is critical.  A great amp may still not be “your” cup of tea in your specific system. 


https://hometheaterreview.com/digital-amplifier-company-megaschino-power-amplifier-reviewed/