Evolution One review

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rustydoglim

Re: Evolution One review
« Reply #40 on: 16 Dec 2018, 05:00 pm »
Most people have seen this new review already, just add it here for completeness:
https://www.hifi-advice.com/blog/review/analog-reviews/amplifier-reviews/nuprime-evolution-one/

If you find that Evolution One is too revealing (bad record is not going to sound good), match it with a DAC such as Evolution DAC (or CDP-9) that can do instantaneous sampling rate conversion that can remove harshness.

Samac

Re: Evolution One review
« Reply #41 on: 16 Dec 2018, 10:22 pm »
Got them in my system and initial impressions ( 2 hours listening) highly positive but then I traveled for a week and came back to 20 inches snow here in the North Carolina mountains, just got phone and internet back, plowed out etc. Anxious to get another good listening session in (I do this when my wife is away for the day and I can crank it up). Will post detailed review in a few weeks.
Thanks for asking
Joe

That's great, Joe. That has to be exciting. Glad things are getting back to normal in the NC mountains. My Dad and brother are in Charlotte and only had to deal with some ice and rain.

You have a fantastic system, enjoy the Evo Ones. I look forward to further impressions.

Cheers,

Scott

Genez

Re: Evolution One review
« Reply #42 on: 17 Dec 2018, 12:53 am »
That's great, Joe. That has to be exciting. Glad things are getting back to normal in the NC mountains. My Dad and brother are in Charlotte and only had to deal with some ice and rain.

You have a fantastic system, enjoy the Evo Ones. I look forward to further impressions.

Cheers,

Scott


Until the Evolution technology ever trickles down to a ST-10 replacement?   I will just have to adore at a distance.  Totally impractical$$$ for my audiophile desktop system.  But, it sounds like the one viable option that could budge me if it would be done.
« Last Edit: 30 Dec 2018, 12:50 am by Genez »

jmpsmash

  • Jr. Member
  • Posts: 12
Re: Evolution One review
« Reply #43 on: 29 Dec 2018, 10:07 pm »
Is there anywhere I can listen to this in SF Bay Area? Either demo or audition. Thanks!

gammajo

Re: Evolution One review
« Reply #44 on: 13 Jan 2019, 03:23 am »
Here is my review of the Nuprime Evolution One mono amplifiers after at least 100 hours on them.
Since I loved my Nuforce Reference 20 mono amplifiers, modded by Bob Smith, the first thing I did when I fired up the Nuprime Evolution Ones was to be sure that these new monos did nothing less well than the Reference 20's. I was pleased to still hear amazing bass (controlled, dynamic, fast, detailed and with true timbre).  And the excellent highs, mids and PRAT were still there as well.  They also were dead quiet which was a question given the new 1 million ohm input impedance and different power supply. They did seem to have more gain than the Reference 20s.

The Evos passed the "do no harm" test. What new did they bring to the table?
First noticed was the freedom from an ever so slight, unnoticeable-till-its-gone digital haze. Wow! Minor and subtle, yet highly important. Next was that the soundstage was much improved in terms of depth, separation of instruments, and air and bloom. Then I was entranced at how much more natural and beautiful high bells sounded - more rounded with more realist timbre, attack, and decay. All voices, especially female vocalists were more natural and captivating. Yet when music was supposed to be edgy it was, they could rock out with the best. When the music is relaxed and sweet, these amps allow you to be emotionally moved by liquidity and languidness ( I think because they sound less digital). This involvement could still be enjoyed at lower volumes than with other amps. They are excellent at naturally presenting the slightest micro-detail with no excessive spotlighting. Solo and massed strings were more realistically presented both in the string sound itself and the body of the instrument.

Where I found the Evos clearly better than any other amp that I have heard in any typology is with highly complex classical music such as symphonies but also complex rock and new age. Everything is more naturally delineated and more realistic sounding even when 100 diverse instruments are playing at once. In fact, I have been listening to much more symphonic music with these amps, where before there was something unsatisfying about the reproduction of such massive and detailed soundscapes. Solo instruments in these works stand out more clearly in character from the mélange of sound around them and dynamic swings are surprisingly instantaneous.

Because these amps are so transparent they act as a very clear window on your other equipment. Therefore I need to mention the rest of my system as well. I am connected with a full loom of Delphi Aerospace Ultra cables distributed by VSA, front end is the Ayon CD 35 which contains transport, DAC and NOS tubed preamp, and speakers are Von Schweikert VR55 Aktives in a 38 by 22 room.

The transparency also means that in my system at least, great recordings sound even better and poor recordings (CDs of 60's rock) are no more listenable than before except that the added slight digital haze most other amplifiers have (unless they are artificially sweet or rolled off) is not compounding the haze present on the recording itself. I like the sound of Pass Labs, Constellation, and VAC amps, yet not even considering the price, size, and heat difference, feel like I like the Evos better. They hit the sweet spot between fluidity and control. There is ample mico-detail for this detail freak and yet they present the music as a whole cloth to be enjoyed as a living presence.

Samoyed

  • Jr. Member
  • Posts: 184
Re: Evolution One review
« Reply #45 on: 13 Jan 2019, 03:35 am »
Wow, I can only envy you!  Try the Evolution DAC. I love mine.

Samac

Re: Evolution One review
« Reply #46 on: 13 Jan 2019, 05:11 pm »
That's great, gammajo. Excellent write-up, thanks for posting. I'm sure the Evos will get even better as you accumulate hours. Enjoy! :thumb:

Cheers,

Scott

Ric Schultz

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    • http://www.tweakaudio.com
Re: Evolution One review
« Reply #47 on: 15 Jan 2019, 02:57 am »
It is interesting that distortion is called "digital".  A class D amp is NOT a digital amplifier.  There are no ones and zeros inside.  If a class D amp sounds less distorted, it is not because it is less "digital" or has less "digital haze".  I know these are phrases we use regularly......but even digital recording and playback is getting less and less "digital" sounding.  In fact, there are those who have dubbed 15 inch reel to reel masters to double and quad speed DSD and find they sound the same......same "analog" sound.  We need to stop thinking that "digital" means distortion and that all distortions are about reducing the "digital haze"......or for that matter "transistor sound" 

Please read up on class D.  They are analog switching amps.  There are a few amps that take the PCM digital signal and then convert it to PWM to run a switching amp output stage (I believe Tact was the first to do this)......but these amps are few and far between.

I want to acknowledge Nuprime for continuing to push class D technology to more and more refined levels.  $8000 may seem a lot to some but compared to the 574lb. each DAgostino Relentless amps ($250.000) are quite a bargain.  I hope Nuprime will look into using the new GaN devices that promise less dead time and therefore even lower distortion for class D output stages.

jmpsmash

  • Jr. Member
  • Posts: 12
Re: Evolution One review
« Reply #48 on: 15 Jan 2019, 03:07 am »
class D and DSD are similar ideas. I wonder if we can somehow drive the amplification stage of a class D amp using DSD signal.

and most DACs convert to the similar single bit stream so same can be applied and feed a class D directly. I wonder how that will sound?

gammajo

Re: Evolution One review
« Reply #49 on: 16 Jan 2019, 03:56 am »
Ric
I do understand that Nuprime Evos are an analogue switching amp, not a digital amp. I could have used a better term than "digital haze" in my review. What I was trying to described was a type of veiling that is additive rather than subtractive and that adds a harshness that is not present in live music and which also masks silence, timbre, and microdynamics. Perhaps it should be called electronic haze?  The haze I am talking about can be present in any class amplifier, in cables, and any type of equipment for source to speakers.

rustydoglim

Re: Evolution One review
« Reply #50 on: 16 Jan 2019, 08:40 pm »
I hope Nuprime will look into using the new GaN devices that promise less dead time and therefore even lower distortion for class D output stages.

Yes, it is in R&D and I know for a fact (from device manufacturer) that we lead in the implementation of such device in switching amp. This is not surprising because of the very sad situation with high-end audio. GaN is too expensive and new for mass market use (probably 2 to 3 years out), so other than Nuprime who are still doing research with high end hybrid class D design, others simply buy from Hypex or IcePower. And we are lucky to have a very talented engineer.

Eisener Bart

Re: Evolution One review
« Reply #51 on: 17 Jan 2019, 02:06 pm »
Here is my review of the Nuprime Evolution One mono amplifiers after at least 100 hours on them.
Since I loved my Nuforce Reference 20 mono amplifiers, modded by Bob Smith, the first thing I did when I fired up the Nuprime Evolution Ones was to be sure that these new monos did nothing less well than the Reference 20's. I was pleased to still hear amazing bass (controlled, dynamic, fast, detailed and with true timbre).  And the excellent highs, mids and PRAT were still there as well.  They also were dead quiet which was a question given the new 1 million ohm input impedance and different power supply. They did seem to have more gain than the Reference 20s.

The Evos passed the "do no harm" test. What new did they bring to the table?
First noticed was the freedom from an ever so slight, unnoticeable-till-its-gone digital haze. Wow! Minor and subtle, yet highly important. Next was that the soundstage was much improved in terms of depth, separation of instruments, and air and bloom. Then I was entranced at how much more natural and beautiful high bells sounded - more rounded with more realist timbre, attack, and decay. All voices, especially female vocalists were more natural and captivating. Yet when music was supposed to be edgy it was, they could rock out with the best. When the music is relaxed and sweet, these amps allow you to be emotionally moved by liquidity and languidness ( I think because they sound less digital). This involvement could still be enjoyed at lower volumes than with other amps. They are excellent at naturally presenting the slightest micro-detail with no excessive spotlighting. Solo and massed strings were more realistically presented both in the string sound itself and the body of the instrument.

Where I found the Evos clearly better than any other amp that I have heard in any typology is with highly complex classical music such as symphonies but also complex rock and new age. Everything is more naturally delineated and more realistic sounding even when 100 diverse instruments are playing at once. In fact, I have been listening to much more symphonic music with these amps, where before there was something unsatisfying about the reproduction of such massive and detailed soundscapes. Solo instruments in these works stand out more clearly in character from the mélange of sound around them and dynamic swings are surprisingly instantaneous.

Because these amps are so transparent they act as a very clear window on your other equipment. Therefore I need to mention the rest of my system as well. I am connected with a full loom of Delphi Aerospace Ultra cables distributed by VSA, front end is the Ayon CD 35 which contains transport, DAC and NOS tubed preamp, and speakers are Von Schweikert VR55 Aktives in a 38 by 22 room.

The transparency also means that in my system at least, great recordings sound even better and poor recordings (CDs of 60's rock) are no more listenable than before except that the added slight digital haze most other amplifiers have (unless they are artificially sweet or rolled off) is not compounding the haze present on the recording itself. I like the sound of Pass Labs, Constellation, and VAC amps, yet not even considering the price, size, and heat difference, feel like I like the Evos better. They hit the sweet spot between fluidity and control. There is ample mico-detail for this detail freak and yet they present the music as a whole cloth to be enjoyed as a living presence.

Good review, wishing you a lot of enjoy!