NUPRIME EVOLUTION ONE-BEST CLASS D AMP ON THE MARKET

I'm curious about Class D myself.  I just have no found the stomach to jump in.  This thread did nothing to encourage me.  

**Sorry- I meant Nuprime Evo Ones (not Ref Ones)

It's amazing how many 'opinions' there are from those that don't actually own these amps.  I have a pair of Nuprime Ref One's (used to own Merrill Veritas) and they are fantastic.  There is a natural tonality to them, along with super low noise floor and wide bandwidth- driving direct from a fully balanced Mola Mola Tambaqui dac.  That being said, I embrace other topologies as well- still love my modded BAT VK-150SE tube monos, and also a custom-designed 211 SET.  I have yet to hear the Merrill Element 116's, but am curious...

I can’t comment on Evolution but I have nuPrime ST-10 for 2 weeks in my setup  and like it more than Hypex Ncore 500, very musical and smooth. I feel bad bc always considered nuPrime as a MidFi brand.IMO,ST-10 highly recommended if you want to try a good class D amplifier!

"conventional AB
amps since its prehistoric technology going back 50 tears" sic

So, my single ended triode Class A amps, using tubes introduced in 1929 suck because they are prehistoric? Class D was invented in 1955. It has taken this long to make them so they don't sound like crap.

It’s the way you look at it sunshine, "if" you can understand, obviously with that little insult you can’t see the forest for the trees, and your comment actually befits you more than me.

I recently attended the XFI Premium show in Veldhoven, Holland and heard a few class D amps. One I remember was the Merrill 116's driving Guru speakers. Sounded really good, in fact good enough to return and listen further.
I of course heard top D'agostino, Ayon, Vitus and some other standout amps but found myself drawn back to the Merrill room on the last day when I had 40 minutes to wait for the connection to the airport. Some rooms did not warrant spending more than 5 minuted in. When it was time to leave I found myself thinking about how comfortable I was with the sound. Class D is up there with the best.

George I find your online demeanor immature, disrespectful, arrogant and in no way constructive. What is the point?

Where is the popcorn emoticon when needed?  It is like George just met himself and Audiozen met himself.  I can see this going for years.  

Must have been from lifting, those heavy linear amps, that explains the strong dislike for them😊.

Off to the hospital to have my second hernia surgery. Get back to you great people in a few days...Cheers

@bigkidz...what preamp was your friend using with the Evo's ?

facten...I only trust what I hear. I mentioned earlier that I once owned the X-1 Preamp that was a factory reburb. Absolute mint when I received. The price was really low. Paid $ 2500.00. At the time I also had Parasounds former flagship the PLD-2000 and the Parasound HCA-1500 amp, Since the X-1 was already burned in, my impressions weren't that great during the three weeks I owned the piece and sold it for $3K. The X-1 was warm and relaxed, but the Parasound was much faster, more dynamic, with a larger sound stage. The X-1 was not even close to the Spectral DMC-10 I listened to years earlier, lacking that very rich, very smooth velvet midrange  that is all to rare from a solid state. The DMC-10 dynamics and sound stage were excellent as well. teajays' recent thread on the Coda 07x preamp that it surpasses the earlier Spectral models is a bold statement, but doesn't surprise since Eric Laachi was on the design team with Nelson Pass at Threshold for years as we all know. If I had to choose between Coda and Pass Labs? Coda hands down.

@audiozen

" Demian Martin is way above Nelson Pass as a design engineer. "
In what specific ways ?

audiozen

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

I'm a gonna place this post elsewhere ...and put this explanation here instead....

 select-hifi.." was still stuck in my memory " ..know exactly what you mean. Sticks to you like glue.

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. 

To keep some perspective you should understand that Totally Wired just happens to be a NuPrime dealer and is historically a huge fan.

tjassoc..the Merrill Veritas amps are pricey and I have no idea who the engineering team is behind those amps. But with Demiam Martin involved
with the Evolution Ones, is why I'm purchasing the amps in the near future and us older guys are well aware that Spectral Audio was the Rolls Royce of high end back in the late 80's. Demian Martin is way above Nelson Pass as a design engineer. Read the Totally Wired review of the Evolution Ones to get a full insight of remarkable these amps are.

The Evoultion Ones take a very long time to burn in, a good 1000 hours before they sound their best

What a crock of  ****

Audiozen,
How do the Nuprime Evolution One monoblock amplifiers compared to the Merrill Veritas monoblock amplifiers?
I realize there's a LARGE price difference.
I have no experience with Class D amplifiers.
Our system strives to create the illusion of a live performance, so that is how I evaluate a components performance.
We're enjoying a pair of Pass XA-200.5's with our Sasha I speakers.
Any insights you can provide would be of great interest.

bigkidz and shertzy...The Evoultion Ones take a very  long time to burn in, a good 1000 hours before they sound their best. Which does not surprise
me since Demain Martin from Spectral is co-designer of the amp. Spectral has a policy going back many years and through today, that they burn their amps in 1000 hours before boxing them and shipping off to their dealers.

Thanks! The Rowland 625 and 625 S2

Great linear amps, I’d back them over Class-D any day, except maybe the Technics SE-R1. Now that would be a good/interesting shootout.

Cheers George

Thanks! The Rowland 625 and 625 S2 are exceptional stereo amps, utilizing Class AB output stages with Rowland’s proprietary power factor corrected tightly regulated switched mode power supplies.

@bill_k   This is third hand info but it was a Rowland stereo amp that the guy felt was more musical, etc.

@bigkidz - Care to share what amps replaced the Evolution Ones? Very rarely will any component be unanimously agreed upon as the best judged by audiophiles with different systems. It's a very subjective hobby!

Class D’s "place in the hobby" is now at the stage where its starting to take over
Sorry mate, Class D great audio is already here. Its over.

You are seriously deluded, the reason why it’s sales are so high is because it’s used in most midfi and subwoofers and av s**t these days.
Not because it’s not even close to out numbering sales in highend stereo audio amps.

What a asstat the behavior of a kid

Class D's "place in the hobby" is now at the stage where its starting to take over and dominate the industry due to the fact that more than ever before, that many A/AB amp companies are now producing Class D amps achieving the same results and they had no interest going that direction ten years ago. The Evolution One, the Kaluga, the Bel Canto Black, the Marten M amp, the Cherry amps, are world class performers just to name a few . " it is not bias, just the search for great audio"
Sorry mate, Class D great audio is already here. Its over. There are dozen's of remarkable outstanding reviews on these well designed components all over the world, the evolution of this technology during the past five years has moved so fast which we all hoped for ten years ago, that these components are now truly high end designs. I have never attacked anyone first from my end, never. The attacks always come at me first, and I roll over for no one. And during the past seventeen years as a member, I have never once gone to another thread and attacked the OP if I thought his or her topic was absurd, false, or ridiculous. And once the first attack happens, then others join in on the dog pile. Very immature. Behavior of high school kids.

👍
He’s just a bogan, with no idea, even on how to shill quietly without drawing attention to himself that he is.
And as far as any tech knowledge he has none, except he’s befriending atmasphere as a yes man you try to give himself some cred.

Interesting how you attack me, having zero idea about my background.  You are such a shill that no one believes anything you say.  I hope your continued attacks and idiocy make you happy as most certainly you have no support here.

In case you haven’t noticed, there is a long running thread about serious world class amps, speakers, cables, DAC, etc. and of course Class D is completely left out. It is not bias, just the search for great audio.

Class D has a place in the hobby and you do it a great disservice with how you alienate people. 

Oh, and the Evolution One... would more than likely blow that Elephant
out the window as well.

It's no surprise the thread has gone into the ditch.

Reason? false claims that need to be pointed out by the OP, usually associated with shilling.

Actually, I have met some very nice troll's especially the Irish one's
who are very generous. In fact, last St. Patricks' Day, I had a troll couple and their kids over for dinner and they cooked the corn beef and cabbage, best corn beef I ever had.

twoleftears...how about..A,B,C,D,E,F,G,H,I,J,K,L,M,N,O....
Now that's a lot of amps for discussion.

The thread title is nothing but an attempt to troll.  It's no surprise the thread has gone into the ditch. 

Class D r&d started back in 1958 then in the early 60's Sinclairs' Class D amps would blow up due to unstable switching, then as we know Spectron came out with a Class D amp in 1974 that made its way to CES with positive results. Class D amps are pure analog amps, but would be considered digital if the incoming signal routes to a DAC to convert the signal, then that would be a digital amplifier. Since D is just a category as Class A, AB, H, and G.

Yes- class D is an analog process. I was actually referring to digital audio in that earlier comment of mine. not class D. 20 years ago I couldn't listen to class D and digital has just started to get listenable. Now both are pretty good but IMO class D is still on a steeper part of the innovation curve.

Just for a break, could we argue about Class G for a while instead?

Na, no disrespect, just saying it how it is just like with you.
Both in shilling mode.

Wow! George is back. I thought he left town. Very disrespectful to atmasphere. During the seventeen years as a member, I have never come across a member like you with such a childish temper. 

atmasphere..I appreciate your positive post. Of course I was wrong to make that statement which was based on the Totally Wired review where the reviewer states'.... "the higher 750mhz switching sets a benchmark for Class D.." surprised he didn't do his homework. You mention " digital still continues to improve " which puzzles me. Class D r&d started back in 1958 then in the early 60's Sinclairs' Class D amps would blow up due to unstable switching, then as we know Spectron came out with a Class D amp in 1974 that made its way to CES with positive results. Class D amps are pure analog amps, but would be considered digital if the incoming signal routes to a DAC to convert the signal, then that would be a digital amplifier. Since D is just a category as Class A, AB, H, and G.

IME, George likes to troll threads about class D- and also feels that Technics is the only game in town due to switching speed, as you've seen.

No your the troll, countering me with BS at every turn, because you have your own Class-D coming out and are in total product protection mode.
 As you know your going to be behind the eight ball with your lower switching speed if you use it, because of this sort of phase shift it will have way down into the audio band.  https://ibb.co/NFkC3Th 

Can't stop laughing at the "shill" comments since you ignore why I focused on Nuprime in the first place. I could give a rat's butt about Nuprime. It has nothing to do with the name or the company whatsoever.
My only interest is Demian Martin. If I found out that Demian was on the design team for the SE-R1, I would be all over that amp like stink on a monkey. As many are aware, Demian is the number circuit designer in the country given his reputation back in the 80's and early 90's for designing the top solid state Class A  Amps and Preamps. Just one on the many innovations that Demian developed, that was a first in the industry, is the circuit board material used in the Spectral amps and Preamps that Spectral has an exclusive, due to their contract with Dupont. That yellow/gold material is polysulphone which is known for having the lowest noise levels against any other circuit board material outside of solid gold.
I have been aware of GaN transistors for five years since at that time I posted a comment on a thread on Gon back then, my comment was, "Whoever comes out with a transistor that has very high heat resistance is when tubes will be a thing of the past ", then further searching on the web I came across a GaN article. If I'm not mistaken, I believe the GaN transistors were developed around 2013. The fact that they switch ten times faster then Mosfets is remarkable. Just because Technics implements the GaN in the SE-R1 doesn't mean the automatic result is
world class state of the art sound. I have spent some time on YouTube listening to the piece and the R-1 through my Altec Lansing processor and my Koss Pro AA  headphones, and came to the same conclusion as the Audiophile's on Audioshark who listened to the amps at the shows. The amp sound is on the colored side, warm, relaxed but does not have the dynamics of the best solid state Class A amps on the market. If one is not concerned about weight or whether an amp is Class D or A/AB and your going to invest a whopping $17K, You would be better off buying a Spectral, Luxman, or Accuphase amplifier that would blow the SE-R1 right out the window.

lhasaguy
The opening statement was sufficient to see a pure shill.
The hyperbole in the opening typically is that of a shill.

👍 You saw it too, all too obvious, how many others saw it? He really needs to go to shilling school.

audiozen
I hear you save a lot of Radio Shack coupons and I just heard
their having a 50% off one day sale tomorrow on their " state of the art "

Just perfect for you sunshine, you really got off on the wrong foot with this attempt at shilling for Nuprime, even tweak1 did a better job with his EVS thread.
If your going to bag something straight off the bat, you better have "some" technical knowledge of what your saying, you had zilch, nada, nothing.

With a statement like that Ihasaguy..its obvious your not an Audiophile
since you have no clue of the current advancements in Class D technology. I hear you save a lot of Radio Shack coupons and I just heard
their having a 50% off one day sale tomorrow on their " state of the art "
Receivers that would be perfect in your living room. Better get there early so you don't have to stand in line.