Amplifier SINAD list ASR + 3rd parties

[Matias]

Also added EVAL-1 as measured both by ASR and SoundStage, making a solid 3rd place entry. This should also be representative to the single Hypex SMPS1200A400 + 2 x Purifi 1ET400A modules + buffers offered by March, Nord, Purifi, Audiophonics, VTV and others, making them a killer mid-powered stereo amplifier for about 1.3k to 1.5k euros.

 

[mhardy6647]

As I wrote in other threads before, the online SoundStage! Network has been measuring amplifiers for a long time now, formerly by 3rd parties (BHK Labs from Bascom H. King) and currently in house. All measurements are listed here:
https://www.soundstagenetwork.com/index.php?option=com_content&view=article&id=17&Itemid=141

I also mixed in there some amplifiers measured by Stereophile.
https://www.stereophile.com/category/integrated-amp-reviews
https://www.stereophile.com/category/solid-state-power-amp-reviews

And also Stereo magazine:
https://stereo-magazine.com/

And some datasheets of complete amp modules (ICEPower, Hypex, Pascal).

I wanted to compare these to the ASR standard measurements: SINAD at 5W in 4 ohms, and power at 1% THD+N in 4 ohms. So I chose some amplifiers that interested me more (let me know if you wish I can add more), read their graphs, converted to SINAD, color coded and created the list below.

I hope you find as interesting as I did.

Name - THD+N (5W, 4 ohms) - SINAD (5W, 4 ohms) - power (1% THD+N, 4 ohms)


Benchmark AHB2 - 0.00013% - 118 - 210W
McIntosh Laboratory MC462 - 0.0005% - 106 - 720W
Orchard BOSC - 0.0005%? - 105 - 250W?
Purifi EVAL-1 - 0.0006% - 104 - 425W
Vera Audio P150/600 RS - 0.0007% (stereo) / 0.0008% (bridge) - 103 (stereo) / 102 (bridge) - 300W? (stereo) / 1000W? (bridge)
Accuphase P-4500 - 0.001% - 100 - 228W
Accuphase A-47 - 0.001% - 100 - 170W
Arcam P49 - 0.001% - 100 - 343W
Devialet 110 - 0.001% - 100 - 163W
Devialet Expert 210 Pro Dual - 0.001% - 100 - 336W
Marantz PM10 - 0.001% - 100 - 423W
Mola Mola Kaluga - 0.001% - 100 - 643W
NAD M33 - 0.001% - 100 - 488W
Rotel RB-1590 - 0.001% - 100 - 640W
Hypex NCore NC122MP - 0.0012% - 98 - 125W
McIntosh Laboratory MC501 - 0.0012% - 98 - 1000W
MBL Reference 9011 monoblock - 0.0014% - 97 - 870W
Devialet D-Premier - 0.0015% - 96 - ?
Halcro dm88 Reference - 0.0015% - 96 - 525W
Hypex NCore NC502MP - 0.0015% - 96 - 500W
Classé Delta Mono - 0.0016% - 96 - 600W
Hypex NCore NC252MP - 0.0017% - 95 - 250W
CH Precision M1.1 - 0.0018% - 95 - 440W
Accuphase E-370 - 0.002% - 94 - 170W
Arcam A 39 - 0.002% - 94 - 181W
Bel Canto Design e.One REF600M - 0.002% - 94 - 658W
ICEpower 1200AS2 - 0.002% - 94 - 670W
ICEpower 125ASX2 - 0.002% (stereo) / 0.0025% (bridge) - 94 (stereo) / 92 (brige) - 105W (stereo) / 370W (bridge)
Marantz PM-KI - 0.002% - 94 - 271W
McIntosh MA 7900 AC - 0.002% - 94 - 204W
Parasound Halo HINT 6 - 0.002% - 94 - 241W
Primare I25 - 0.002% - 94 - 282W
Soulution 330 - 0.002% - 94 - 217W
Accuphase M-2000 - 0.0021% - 94 - 774W
Devialet Expert 130 Pro - 0.0022% - 93 - 200W
MBL 9007 - 0.0022% - 93 - 600W
Pass Laboratories XA25 - 0.0022% - 93 - 130W
Pascal M-PRO2 - 0.0023% - 93 - 800W
Soulution 710 - 0.0025% - 92 - 260W
Bel Canto e1X - 0.0026% - 92 - 530W
Cambridge Audio Edge A - 0.0026% - 92 - 230W
Audionet Max - 0.0028% - 91 - 750W
Constellation Performance Centaur II 500 - 0.0028% - 91 - 880W
Bricasti Design M15 - 0.0029% - 91 - 550W
Accustic Arts AMP II-MK4 - 0.003% - 90 - 460W
Accuphase E-480 - 0.003% - 90 - 293W
Devialet Expert 220 Pro - 0.003% - 90 - 343W
Electrocompaniet ECI 80D - 0.003% - 90 - ?
Primare A35.2 - 0.003% - 90 - 460W
PS Audio BHK Signature 300 - 0.0031% - 90 - 620W
NAD C 328 - 0.0035% - 89 - 40W
Calyx Audio Femti - 0.01% (stereo) / 0.0036% (mono) - 80 (stereo) / 89 (mono) - 107W (stereo) / 367W (mono)
Krell Evolution 600 - 0.0036% - 89 - 1190W
Simaudio Moon Evolution 860A - 0.0038% - 88 - 290W
Electrocompaniet ECI6 DX - 0.004% - 88 - 193W
Threshold T-200 - 0.004% - 88 - 220W?
CH Precision I1 - 0.0042% - 88 - 210W
Mytek Brooklyn Amp - 0.0045% - 87 - 315W
PS Audio Stellar M700 - 0.0045% - 87 - 712W
Mark Levinson No.532H - 0.0049% - 86 - 500W
Bryston 4B3 - 0.005% - 86 - 552W
Boulder Amplifiers 2150 - 0.005% - 86 - 1450W
Luxman L-590 AX II - 0.005% - 86 - 131W
Musical Fidelity M6 SI - 0.005% - 86 - 255W
Rotel Michi S5 - 0.05% - 86 - 867W
Hegel Music Systems H30 - 0.005% (stereo/mono) - 86 (stereo/mono) - 499W (stereo) / 1953W (mono)
Luxman M-900u - 0.005% (stereo) - 86 (stereo) - 638W (stereo) / 749W (mono)
Naim NAP 250 DR - 0.005% - 86 - 162W
Hegel Music Systems H590 - 0.0055% - 85 - 525W
Simaudio Moon Evolution 870A - 0.0055% (stereo) / 0.014% (mono) - 85 (stereo) / 77 (mono) - 543W (stereo) / 1520W (mono)
Accuphase E-260 - 0.006% - 84 - 157W
Constellation Performance Centaur II 500 - 0.006% - 84 - 1000W
Electrocompaniet AW400 - 0.006% - 84 - 655W
Hegel Music Systems H360 - 0.006% - 84 - 468W
Soulution 530 - 0.006% - 84 - 273W
Parasound Halo A31 - 0.0062% - 84 - 352W
Mark Levinson No.53 Reference monoblock - 0.0063% - 84 - 1080W
Accustic Arts Audio Mono II - 0.007% - 83 - 385W
Pass Laboratories XA200.8 - 0.007% - 83 - 480W
Peachtree Audio nova300 - 0.007% - 83 - 500W
Schiit Audio Aegir - 0.007% - 83 - 43W
Parasound Halo JC 1+ - 0.0075% - 82 - 830W
Bel Canto e.One Ref1000M - 0.008% - 82 - 1200W
Jeff Rowland Design Group Model 2 - 0.008% - 82 - 126W
Luxman L-509X - 0.008% - 82 - 220W
Rotel Michi M8 - 0.008% - 81 - 1793W
Mark Levinson No.5805 - 0.0081% - 81 - 210W
Pascal S-PRO2 - 0.0082% - 81 - 490W
AVM Ovation MA8.2 - 0.0085% - 81 - 1320W
Bel Canto Design Black - 0.009% - 81 - ?
Hegel Music Systems H160 - 0.009% - 81 - 270W
Luxman M-800A - 0.009% - 81 - 280W
Rotel RB-1090 - 0.0095% - 80 - 750W?
Moon Neo 340I - 0.01% - 80 - 166W
Marantz HD-AMP1 - 0.01% - 80 - 111W
Parasound Halo JC5 - 0.01% - 80 - 666W
Parasound Halo A 21+ - 0.011% - 79 - 620W
Classé Sigma 2200i - 0.012% - 78 - 410W
NAD D 3020 - 0.012% - 78 - 68W
Constellation Inspiration Stereo 1.0 - 0.013% - 78 - 480W
NAD Masters Series M22 - 0.013% - 78 - 400W
Pass Labs INT-25 - 0.013% - 78 - 50W
Anthem Statement M1 - 0.015% - 76 - 2120W
Moon 600i V2 - 0.015% - 76 - 210W
Schiit Audio Ragnarok 2 - 0.015% - 76 - 100W
NAD Masters Series M32 DirectDigital - 0.015% - 76 - 190W
GamuT Di150 LE - 0.016% - 76 - 400W
MBL Corona C15 monoblock - 0.016% - 75 - 520W
Anthem Electronics STR - 0.017% - 75 - 400W
Creek Evolution 100A - 0.017% - 75 - 180W
Harman Kardon HK 990 - 0.017% - 75 - 300W
Mark Levinson No.585 - 0.017% - 75 - 390W
Krell K-300i - 0.018% - 75 - 300W
Cambridge Azur 851A - 0.019% - 74 - 220W
Ayre Acoustics MX-R Twenty - 0.02% - 74 - 595W
Chord SPM 14000 Ultimate - 0.02% - 74 - 980W
Emotiva XPA Gen3 - 0.02% - 74 - 520W
Cary Audio SI-300.2d - 0.021% - 74 - 500W
Krell Solo 575 - 0.021% - 74 - 940W
Parasound Halo A23+ - 0.022% (stereo) - 73 - 275W
Pass Laboratories XA60.8 - 0.022% - 73 - 240W
Krell FBI - 0.023% - 73 - 667W
Bel Canto Design Black ACI 600 - 0.025% - 72 - 515W
Mark Levinson No.536 - 0.025% - 72 - 800W
Moon by Simaudio Neo 340i - 0.025% - 72 - 200W
Moon by Simaudio 888 - 0.025% - 72 - 1300W
Jeff Rowland Design Group Model 1 - 0.028% - 71 - 140W
Verity Audio Monsalvat Amp-60 - 0.028% - 71 - 145W
B.M.C. Audio Amplifier C1 - 0.029% - 71 - 275W
AVM A 6.2 Master Edition - 0.03% - 70 - 298W
NAD Masters Series M10 - 0.03% - 70 - 295W
Simaudio Moon 400M - 0.03% - 70 - 618W
T+A PA 3000 HV - 0.03% - 70 - 460W
Ayre Acoustics VX-5 - 0.038% - 68 - 286W
Pass Laboratories INT-60 - 0.04% - 68 - 125W
Krell KAV-400xi - 0.046% - 67 - 350W
Nagra Classic Amp - 0.06% - 64 - 121W
Ayre Acoustics EX-8 - 0.07% - 63 - 125W
Musical Fidelity Nu-Vista 800 - 0.07% - 63 - 500W
Parasound Halo Integrated - 0.072% - 63 - 270W
Dan D'Agostino Momentum monoblock - 0.076% - 62 - 1115W
PS Audio Sprout - 0.077% - 62 - 57W
Gryphon Diablo 120 - 0.1% - 60 - 240W
Gryphon Diablo 300 - 0.1% - 60 - 473W
darTZeel NHB-468 - 0.11% - 59 - 205W
Devialet Expert 140 Pro - 0.11% - 59 - 205W
Electrocompaniet Nemo - 0.17% - 55 - 1145W
First Watt J2 - 0.26% - 52 - 13W
Dan D'Agostino Progression Mono - 0.27% - 51 - 934W
First Watt SIT-3 - 0.4% - 48 - 17W

Let me know if you find any mistake.

As a big fan of meta-analysis I think it would be pretty interesting to plot distortion (assessed by whatever means -- apples to apples, of course) vs. MSRP.
... and, no, I am not being facetious.

 

[DChenery]

Have taken the list presented in Post 1, and converted it to Excel file format (.xlsx) and text (.csv). All data in the table is now numeric, providing the ability to sort and plot to your hearts desire. As suggested in the discussion, I have added in a price column (MSRP). Prices were obtained from Stereophile, What Hi-Fi, Amazon, and ASR. No attempt was made to compensate for review date, and all prices are for a stereo pair (may be some mistakes in the monoblock pricing, as some of the reviews are vague as to whether the price was for one or two channels). Enjoy!!

 

[DChenery]

So, for a quick example of calculating a ratio and plotting it, here is "The Cost of Power".

 

[Pjetrof]

Added a bunch of heavy and powerful big name amplifiers. 131 total now!

could you add the quad elite qsp pls?

https://www.hifigear.co.uk/media/uploads/Quad_QSP_HFN.pdf

 

[Matias]

could you add the quad elite qsp pls?

https://www.hifigear.co.uk/media/uploads/Quad_QSP_HFN.pdf

Done, that is what I read in the red graph.
Quad Elite QSP - 0.004% - 88 - 255W

 

[Matias]

Added a bunch more from HFN.

 

[ENG]

I wanted to compare amplifiers measured elsewhere to the ASR standard measurements: SINAD at 5W in 4 ohms, and power at 1% THD+N in 4 ohms. So I chose some amplifiers that interested me more (let me know if you wish I can add more), read their graphs, converted to SINAD, color coded and created the list below.

I hope you find as interesting as I did.

Let me know if you find any mistake.

Great work here Matias!

In the list I find NAD M22 two places?
NAD Masters Series M22 - 0.013% - 78 - 400W (orange)
and
NAD M22 - 0.0012% - 98 - 360W (blue)
Even if the one is NAD M22.2 (newer) there cannot be
a difference that great.

There is some Pascalmodule in the list. If you se the homepage
of the firm: www.pascal-audio.com all their modules have
quote: "THD+N (typical) <0,05% (20Hz-20kHz, 8 ohms load)"
That's also more in line with Gato Audio DIA-250S NPM with
Pascal Module with THD+N 0,09%.
(Both firms are a few kilometers from where I live)

I have both Hegel H190 and Hegel H390.
The H390 is at line with H30, their mountain of a poweramp,
and better than their most expensive int. H590.
But H190 is worse than H160 (elder), that don't make sense.

ENG

 

[Matias]

Hi @ENG thanks.

Many times the same amplifier was measured in different places. I decided to keep the best measuring ones. I just removed the duplicate entry for M22. In this case, the better measuring was from Hi-Fi News and the worst measuring from Stereophile. It kind of makes sense SINAD around 95s as the M22 is based on NCore, and all NCores are around the 95s. I don't know why it measured worst on Stereophile...

Hi-Fi News 04-2015

https://www.stereophile.com/content/nad-masters-series-m22-power-amplifier-measurements


As for Pascal, I read the THD+N on 1kHz at 5W from the graphs on their datasheets.

The Hegel amps I just read graphs and typed the values. I don't judge if the measurements are done wrong (unlikely) or if a Hegel amp may sound better than other, perhaps there is something better like DAC in there that contributes?

Of course the ideal would be for the manufacturers to provide the same standardized measurements of power x THD+N showing the reading at 1kHz and 5W, but those are few... Right now what we have instead is read them from different sources. Better than nothing.

 

[Alexanderc]

I applaud the efforts of everyone contributing to this project. It doesn’t replace a complete suite of testing, but having this important data point that’s consistent and comparable is really useful. I’m sure some people who are new to ASR will look at the numbers and assume it’s some kind of sound quality ranking, but for those of us who have been around for a while and know better I think it’s a great resource.

 

[nick-v]

I'm surprised to see the Boulder 2150 so far down the list on SINAD. On the Darko Audio podcast with Bruno Putzeys, he references the Benchmark AHB2 and the Boulder 2150 as the best amps in the world (aside from his Purifi and NCore amps).

 

[Matias]

I'm surprised to see the Boulder 2150 so far down the list on SINAD. On the Darko Audio podcast with Bruno Putzeys, he references the Benchmark AHB2 and the Boulder 2150 as the best amps in the world (aside from his Purifi and NCore amps).

Yes, I am surprised too. I wonder if there are another measurements where it performs better, as the M22 above? I don't know.

https://www.stereophile.com/content/boulder-amplifiers-2150-monoblock-power-amplifier-measurements

Maybe Stereophile's AP is missing a zero on the Y axis? @John Atkinson

 

[sweetchaos]

I saw another user created an excel file from original post, but has this info been added to a public google spreadsheet yet, for real-time viewing?

 

[Ilkless]

I'm very surprised at the 5010's performance. I had written off Exposure as some cottage-industry company riding on the cult of personality accorded to boutique European audio electronics, but that's actually very solid performance. I wouldn't have expected it looking at the deceptively simple internals too.

 

[Tom C]

Matias, your list is super cool. Thanks for the strong work!

 

[BAMCIS]

I wanted to compare amplifiers measured elsewhere to the ASR standard measurements: SINAD at 5W in 4 ohms, and power at 1% THD+N in 4 ohms. So I chose some amplifiers that interested me more (let me know if you wish I can add more), read their graphs, converted to SINAD, color coded and created the list below.

I hope you find as interesting as I did.

Sources are from Soundstage! Network:
https://www.soundstagenetwork.com/index.php?option=com_content&view=article&id=17&Itemid=141

Stereophile:
https://www.stereophile.com/category/integrated-amp-reviews
https://www.stereophile.com/category/solid-state-power-amp-reviews

Stereo magazine:
https://stereo-magazine.com/

Hi-Fi News:
https://www.hifinews.com/category/integrated-amplifiers
https://www.hifinews.com/category/pre-power-amplifiers

And some datasheets of complete amp modules (ICEpower, Hypex, Pascal).



Name - THD+N (5W, 4 ohms) - SINAD (5W, 4 ohms) - power (1% THD+N, 4 ohms)

Benchmark AHB2 - 0.00013% - 118 - 210W
McIntosh Laboratory MC462 - 0.0005% - 106 - 720W
Orchard BOSC - 0.0005%? - 105 - 250W?
Purifi EVAL-1 - 0.0006% - 104 - 425W
Exposure 5010 Mono - 0.0007% - 103 - 415W
Naim Statement NAP S1 - 0.0007% - 103 - 1493W
Vera Audio P150/600 RS - 0.0007% (stereo) / 0.0008% (bridge) - 103 (stereo) / 102 (bridge) - 300W? (stereo) / 1000W? (bridge)
Arcam SA30 - 0.0008% - 102 - 220W
Accuphase P-4500 - 0.001% - 100 - 228W
Accuphase A-47 - 0.001% - 100 - 170W
Arcam P49 - 0.001% - 100 - 343W
Devialet 110 - 0.001% - 100 - 163W
Devialet Expert 210 Pro Dual - 0.001% - 100 - 336W
Marantz PM10 - 0.001% - 100 - 423W
McIntosh MA9000 integrated - 0.001% - 100 - 415W
Mola Mola Kaluga - 0.001% - 100 - 643W
NAD M33 - 0.001% - 100 - 488W
Rotel RB-1590 - 0.001% - 100 - 640W
Hypex NCore NC122MP - 0.0012% - 98 - 125W
McIntosh Laboratory MC501 - 0.0012% - 98 - 1000W
NAD M22 - 0.0012% - 98 - 360W
MBL Reference 9011 monoblock - 0.0014% - 97 - 870W
Devialet D-Premier - 0.0015% - 96 - ?
Halcro dm88 Reference - 0.0015% - 96 - 525W
Hypex NCore NC502MP - 0.0015% - 96 - 500W
Classé Delta Mono - 0.0016% - 96 - 600W
Hypex NCore NC252MP - 0.0017% - 95 - 250W
CH Precision M1.1 - 0.0018% - 95 - 440W
Accuphase E-370 - 0.002% - 94 - 170W
Arcam A 39 - 0.002% - 94 - 181W
Bel Canto Design e.One REF600M - 0.002% - 94 - 658W
Bricasti M25 - 0.002% - 94 - 585W
ICEpower 1200AS2 - 0.002% - 94 - 670W
ICEpower 125ASX2 - 0.002% (stereo) / 0.0025% (bridge) - 94 (stereo) / 92 (bridge) - 105W (stereo) / 370W (bridge)
Marantz PM-KI - 0.002% - 94 - 271W
Mark Levinson No.534 - 0.002% - 94 - 550W
McIntosh MA 7900 AC - 0.002% - 94 - 204W
Parasound Halo HINT 6 - 0.002% - 94 - 241W
Primare I25 - 0.002% - 94 - 282W
Soulution 330 - 0.002% - 94 - 217W
Accuphase M-2000 - 0.0021% - 94 - 774W
Devialet Expert 130 Pro - 0.0022% - 93 - 200W
Marantz PM-12SE - 0.0022% - 93 - 310W
MBL 9007 - 0.0022% - 93 - 600W
McIntosh MA252 Integrated - 0.0022% - 93 - 200W
Pass Laboratories XA25 - 0.0022% - 93 - 130W
ICEpower 700AS1 - 0.0023% - 93 - 720W
Pascal M-PRO2 - 0.0023% - 93 - 800W
Audia Flight Strumento No4 mk2 - 0.0025 - 92 - 546W
Soulution 710 - 0.0025% - 92 - 260W
Bel Canto e1X - 0.0026% - 92 - 530W
Cambridge Audio Edge A - 0.0026% - 92 - 230W
Primare I15 Prisma - 0.0027% - 91 - 140W
Rotel RB-1590 - 0.0027% - 91 - 805W
Audionet Max - 0.0028% - 91 - 750W
Constellation Performance Centaur II 500 - 0.0028% - 91 - 880W
ICEpower 50ASX2 (SE) - 0.0028% - 91 - 50W
ICEpower 300AS1 - 0.0028% - 91 - 310W
Bricasti Design M15 - 0.0029% - 91 - 550W
Accustic Arts AMP II-MK4 - 0.003% - 90 - 460W
Accuphase E-480 - 0.003% - 90 - 293W
Bel Canto Design Black MPS1 - 0.003% - 90 - 680W
Devialet Expert 220 Pro - 0.003% - 90 - 343W
Electrocompaniet ECI 80D - 0.003% - 90 - ?
Micromega M-150 - 0.003% - 90 - 315W
Primare A35.2 - 0.003% - 90 - 460W
PS Audio BHK Signature 300 - 0.0031% - 90 - 620W
ICEpower 500ASP - 0.0032% - 90 - 500W
NAD C 328 - 0.0035% - 89 - 40W
Calyx Audio Femti - 0.01% (stereo) / 0.0036% (mono) - 80 (stereo) / 89 (mono) - 107W (stereo) / 367W (mono)
Krell Evolution 600 - 0.0036% - 89 - 1190W
Simaudio Moon Evolution 860A - 0.0038% - 88 - 290W
Constellation Audio Inspiration Mono 1.0 - 0.004% - 88 - 990W
Electrocompaniet ECI6 DX - 0.004% - 88 - 193W
Quad Elite QSP - 0.004% - 88 - 255W
Threshold T-200 - 0.004% - 88 - 220W?
CH Precision I1 - 0.0042% - 88 - 210W
Mytek Brooklyn Amp - 0.0045% - 87 - 315W
PS Audio Stellar M700 - 0.0045% - 87 - 712W
Mark Levinson No.532H - 0.0049% - 86 - 500W
Bryston 4B3 - 0.005% - 86 - 552W
Boulder Amplifiers 2150 - 0.005% - 86 - 1450W
Luxman L-590 AX II - 0.005% - 86 - 131W
Musical Fidelity M6 SI - 0.005% - 86 - 255W
Rotel Michi S5 - 0.05% - 86 - 867W
Hegel Music Systems H30 - 0.005% (stereo/mono) - 86 (stereo/mono) - 499W (stereo) / 1953W (mono)
Hegel Music Systems H390 - 0.005% - 86 - 490W
Luxman M-900u - 0.005% (stereo) - 86 (stereo) - 638W (stereo) / 749W (mono)
Naim NAP 250 DR - 0.005% - 86 - 162W
Pascal X-PRO - 0.0052% - 86 - 2000W
D'Agostino Relentless Mono - 0.0055% - 85 - 2730W
Hegel Music Systems H590 - 0.0055% - 85 - 525W
Simaudio Moon Evolution 870A - 0.0055% (stereo) / 0.014% (mono) - 85 (stereo) / 77 (mono) - 543W (stereo) / 1520W (mono)
T+A PA 3100 HV (+ PS 3000 HV) - 0.0055% - 85 - 600W (725W)
Accuphase E-260 - 0.006% - 84 - 157W
Chord Ultima Ultima 2 Power - 0.006% - 84 - 1285W
Electrocompaniet AW400 - 0.006% - 84 - 655W
Hegel Music Systems H360 - 0.006% - 84 - 468W
Musical Fidelity M8xi - 0.006% - 84 - 940W
Pascal U-PRO1 - 0.006% - 84 - 280W
Soulution 530 - 0.006% - 84 - 273W
Parasound Halo A31 - 0.0062% - 84 - 352W
Mark Levinson No.53 Reference monoblock - 0.0063% - 84 - 1080W
Accustic Arts Audio Mono II - 0.007% - 83 - 385W
Nagra HD AMP power - 0.007% - 83 - 475W
Pass Laboratories XA200.8 - 0.007% - 83 - 480W
Peachtree Audio nova300 - 0.007% - 83 - 500W
Schiit Audio Aegir - 0.007% - 83 - 43W
Parasound Halo JC 1+ - 0.0075% - 82 - 830W
Bel Canto e.One Ref1000M - 0.008% - 82 - 1200W
Jeff Rowland Design Group Model 2 - 0.008% - 82 - 126W
Luxman L-509X - 0.008% - 82 - 220W
Rotel Michi M8 - 0.008% - 81 - 1793W
Mark Levinson No.5805 - 0.0081% - 81 - 210W
Pascal S-PRO2 - 0.0082% - 81 - 490W
AVM Ovation MA8.2 - 0.0085% - 81 - 1320W
Hegel Music Systems H160 - 0.009% - 81 - 270W
Luxman M-800A - 0.009% - 81 - 280W
Pascal T-PRO1 - 0.009% - 81 - 500W
Yamaha M-5000 - 0.009% - 81 - 256W
Rotel RB-1090 - 0.0095% - 80 - 750W?
Moon Neo 340I - 0.01% - 80 - 166W
Marantz HD-AMP1 - 0.01% - 80 - 111W
Parasound Halo JC5 - 0.01% - 80 - 666W
Parasound Halo A 21+ - 0.011% - 79 - 620W
Classé Sigma 2200i - 0.012% - 78 - 410W
NAD D 3020 - 0.012% - 78 - 68W
Constellation Inspiration Stereo 1.0 - 0.013% - 78 - 480W
Emotiva BasX TA-100 - 0.013% - 78 - 95W
Naim Nait XS 3 - 0.013% - 78 - 130W
Pass Labs INT-25 - 0.013% - 78 - 50W
Anthem Statement M1 - 0.015% - 76 - 2120W
Gamut M250i - 0.015% - 76 - 630W
Hegel H190 - 0.015% - 76 - 280W
Moon 600i V2 - 0.015% - 76 - 210W
Schiit Audio Ragnarok 2 - 0.015% - 76 - 100W
NAD Masters Series M32 DirectDigital - 0.015% - 76 - 190W
T+A M 40 HV (HC) - 0.015% - 76 - 250W
GamuT Di150 LE - 0.016% - 76 - 400W
MBL Corona C15 monoblock - 0.016% - 75 - 520W
Anthem Electronics STR - 0.017% - 75 - 400W
Creek Evolution 100A - 0.017% - 75 - 180W
Harman Kardon HK 990 - 0.017% - 75 - 300W
Mark Levinson No.585 - 0.017% - 75 - 390W
ICEpower 1000ASP - 0.017% - 75 - 1175W
Audio Research REF160M mono - 0.018% - 75 - 165W
Emotiva XPA-DR2 - 0.018% - 75 - 1020W
Krell K-300i - 0.018% - 75 - 300W
Cambridge Azur 851A - 0.019% - 74 - 220W
Ayre Acoustics MX-R Twenty - 0.02% - 74 - 595W
Constellation Audio Taurus Stereo - 0.02% - 74 - 665W
Chord SPM 14000 Ultimate - 0.02% - 74 - 980W
Emotiva XPA Gen3 - 0.02% - 74 - 520W
Cary Audio SI-300.2d - 0.021% - 74 - 500W
Krell Solo 575 - 0.021% - 74 - 940W
Parasound Halo A23+ - 0.022% (stereo) - 73 - 275W
Pass Laboratories XA60.8 - 0.022% - 73 - 240W
Krell FBI - 0.023% - 73 - 667W
Ayre VX-5 Twenty - 0.0025% - 72 - 340W
Bel Canto Design Black ACI 600 - 0.025% - 72 - 515W
Mark Levinson No.536 - 0.025% - 72 - 800W
Moon by Simaudio Neo 340i - 0.025% - 72 - 200W
Moon by Simaudio 888 - 0.025% - 72 - 1300W
Jeff Rowland Design Group Model 1 - 0.028% - 71 - 140W
Verity Audio Monsalvat Amp-60 - 0.028% - 71 - 145W
B.M.C. Audio Amplifier C1 - 0.029% - 71 - 275W
AVM A 6.2 Master Edition - 0.03% - 70 - 298W
NAD Masters Series M10 - 0.03% - 70 - 295W
Simaudio Moon 400M - 0.03% - 70 - 618W
T+A PA 3000 HV - 0.03% - 70 - 460W
Ayre Acoustics VX-5 - 0.038% - 68 - 286W
Pass Laboratories INT-60 - 0.04% - 68 - 125W
Krell KAV-400xi - 0.046% - 67 - 350W
Nagra Classic Amp - 0.06% - 64 - 121W
Ayre Acoustics EX-8 - 0.07% - 63 - 125W
Musical Fidelity Nu-Vista 800 - 0.07% - 63 - 500W
Parasound Halo Integrated - 0.072% - 63 - 270W
Dan D'Agostino Momentum monoblock - 0.076% - 62 - 1115W
PS Audio Sprout - 0.077% - 62 - 57W
Pass Labs INT-250 - 0.08% - 62 - 397W
Unison Research Unico Due Integrated - 0.09% - 61 - 205W
Gato Audio DIA-250S NPM - 0.09% - 61 - 480W
Gryphon Diablo 120 - 0.1% - 60 - 240W
Gryphon Diablo 300 - 0.1% - 60 - 473W
darTZeel NHB-468 - 0.11% - 59 - 205W
Devialet Expert 140 Pro - 0.11% - 59 - 205W
Audio Research REF160M - 0.17% - 59 - 165W
Electrocompaniet Nemo - 0.17% - 55 - 1145W
First Watt J2 - 0.26% - 52 - 13W
Dan D'Agostino Progression Mono - 0.27% - 51 - 934W
First Watt SIT-3 - 0.4% - 48 - 17W
NAD D 3020 V2 - 0.4% - 48 - 58W

Let me know if you find any mistake.

Lot of $5K, $10K amps way down at the bottom with awful numbers. Amazing to see the $6,700 Bryston 4B3 making much less power than the $600 XLS 2502 with similar SINAD

 

[boXem]

Yes, I am surprised too. I wonder if there are another measurements where it performs better, as the M22 above? I don't know.

https://www.stereophile.com/content/boulder-amplifiers-2150-monoblock-power-amplifier-measurements
View attachment 84904

Maybe Stereophile's AP is missing a zero on the Y axis? @John Atkinson

He calls it distortion, but this looks like THD+N, dominated by N.

 

[vavan]

Let me know if you find any mistake

not sure whether mistake or not but parasound hinto vs hint6 differing that much seems somewhat suspicious to me...

Parasound Halo HINT 6 - 0.002% - 94 - 241W

Parasound Halo Integrated - 0.072% - 63 - 270W

 

[BAMCIS]

I wanted to compare amplifiers measured elsewhere to the ASR standard measurements: SINAD at 5W in 4 ohms, and power at 1% THD+N in 4 ohms. So I chose some amplifiers that interested me more (let me know if you wish I can add more), read their graphs, converted to SINAD, color coded and created the list below.

I hope you find as interesting as I did.

Sources are from Soundstage! Network:
https://www.soundstagenetwork.com/index.php?option=com_content&view=article&id=17&Itemid=141

Stereophile:
https://www.stereophile.com/category/integrated-amp-reviews
https://www.stereophile.com/category/solid-state-power-amp-reviews

Stereo magazine:
https://stereo-magazine.com/

Hi-Fi News:
https://www.hifinews.com/category/integrated-amplifiers
https://www.hifinews.com/category/pre-power-amplifiers

And some datasheets of complete amp modules (ICEpower, Hypex, Pascal).



Name - THD+N (5W, 4 ohms) - SINAD (5W, 4 ohms) - power (1% THD+N, 4 ohms)

Benchmark AHB2 - 0.00013% - 118 - 210W
McIntosh Laboratory MC462 - 0.0005% - 106 - 720W
Orchard BOSC - 0.0005%? - 105 - 250W?
Purifi EVAL-1 - 0.0006% - 104 - 425W
Exposure 5010 Mono - 0.0007% - 103 - 415W
Naim Statement NAP S1 - 0.0007% - 103 - 1493W
Vera Audio P150/600 RS - 0.0007% (stereo) / 0.0008% (bridge) - 103 (stereo) / 102 (bridge) - 300W? (stereo) / 1000W? (bridge)
Arcam SA30 - 0.0008% - 102 - 220W
Accuphase P-4500 - 0.001% - 100 - 228W
Accuphase A-47 - 0.001% - 100 - 170W
Arcam P49 - 0.001% - 100 - 343W
Devialet 110 - 0.001% - 100 - 163W
Devialet Expert 210 Pro Dual - 0.001% - 100 - 336W
Marantz PM10 - 0.001% - 100 - 423W
McIntosh MA9000 integrated - 0.001% - 100 - 415W
Mola Mola Kaluga - 0.001% - 100 - 643W
NAD M33 - 0.001% - 100 - 488W
Rotel RB-1590 - 0.001% - 100 - 640W
Hypex NCore NC122MP - 0.0012% - 98 - 125W
McIntosh Laboratory MC501 - 0.0012% - 98 - 1000W
NAD M22 - 0.0012% - 98 - 360W
MBL Reference 9011 monoblock - 0.0014% - 97 - 870W
Devialet D-Premier - 0.0015% - 96 - ?
Halcro dm88 Reference - 0.0015% - 96 - 525W
Hypex NCore NC502MP - 0.0015% - 96 - 500W
Classé Delta Mono - 0.0016% - 96 - 600W
Hypex NCore NC252MP - 0.0017% - 95 - 250W
CH Precision M1.1 - 0.0018% - 95 - 440W
Accuphase E-370 - 0.002% - 94 - 170W
Arcam A 39 - 0.002% - 94 - 181W
Bel Canto Design e.One REF600M - 0.002% - 94 - 658W
Bricasti M25 - 0.002% - 94 - 585W
ICEpower 1200AS2 - 0.002% - 94 - 670W
ICEpower 125ASX2 - 0.002% (stereo) / 0.0025% (bridge) - 94 (stereo) / 92 (bridge) - 105W (stereo) / 370W (bridge)
Marantz PM-KI - 0.002% - 94 - 271W
Mark Levinson No.534 - 0.002% - 94 - 550W
McIntosh MA 7900 AC - 0.002% - 94 - 204W
Parasound Halo HINT 6 - 0.002% - 94 - 241W
Primare I25 - 0.002% - 94 - 282W
Soulution 330 - 0.002% - 94 - 217W
Accuphase M-2000 - 0.0021% - 94 - 774W
Devialet Expert 130 Pro - 0.0022% - 93 - 200W
Marantz PM-12SE - 0.0022% - 93 - 310W
MBL 9007 - 0.0022% - 93 - 600W
McIntosh MA252 Integrated - 0.0022% - 93 - 200W
Pass Laboratories XA25 - 0.0022% - 93 - 130W
ICEpower 700AS1 - 0.0023% - 93 - 720W
Pascal M-PRO2 - 0.0023% - 93 - 800W
Audia Flight Strumento No4 mk2 - 0.0025 - 92 - 546W
Soulution 710 - 0.0025% - 92 - 260W
Bel Canto e1X - 0.0026% - 92 - 530W
Cambridge Audio Edge A - 0.0026% - 92 - 230W
Primare I15 Prisma - 0.0027% - 91 - 140W
Rotel RB-1590 - 0.0027% - 91 - 805W
Audionet Max - 0.0028% - 91 - 750W
Constellation Performance Centaur II 500 - 0.0028% - 91 - 880W
ICEpower 50ASX2 (SE) - 0.0028% - 91 - 50W
ICEpower 300AS1 - 0.0028% - 91 - 310W
Bricasti Design M15 - 0.0029% - 91 - 550W
Accustic Arts AMP II-MK4 - 0.003% - 90 - 460W
Accuphase E-480 - 0.003% - 90 - 293W
Bel Canto Design Black MPS1 - 0.003% - 90 - 680W
Devialet Expert 220 Pro - 0.003% - 90 - 343W
Electrocompaniet ECI 80D - 0.003% - 90 - ?
Micromega M-150 - 0.003% - 90 - 315W
Primare A35.2 - 0.003% - 90 - 460W
PS Audio BHK Signature 300 - 0.0031% - 90 - 620W
ICEpower 500ASP - 0.0032% - 90 - 500W
NAD C 328 - 0.0035% - 89 - 40W
Calyx Audio Femti - 0.01% (stereo) / 0.0036% (mono) - 80 (stereo) / 89 (mono) - 107W (stereo) / 367W (mono)
Krell Evolution 600 - 0.0036% - 89 - 1190W
Simaudio Moon Evolution 860A - 0.0038% - 88 - 290W
Constellation Audio Inspiration Mono 1.0 - 0.004% - 88 - 990W
Electrocompaniet ECI6 DX - 0.004% - 88 - 193W
Quad Elite QSP - 0.004% - 88 - 255W
Threshold T-200 - 0.004% - 88 - 220W?
CH Precision I1 - 0.0042% - 88 - 210W
Mytek Brooklyn Amp - 0.0045% - 87 - 315W
PS Audio Stellar M700 - 0.0045% - 87 - 712W
Mark Levinson No.532H - 0.0049% - 86 - 500W
Bryston 4B3 - 0.005% - 86 - 552W
Boulder Amplifiers 2150 - 0.005% - 86 - 1450W
Luxman L-590 AX II - 0.005% - 86 - 131W
Musical Fidelity M6 SI - 0.005% - 86 - 255W
Rotel Michi S5 - 0.05% - 86 - 867W
Hegel Music Systems H30 - 0.005% (stereo/mono) - 86 (stereo/mono) - 499W (stereo) / 1953W (mono)
Hegel Music Systems H390 - 0.005% - 86 - 490W
Luxman M-900u - 0.005% (stereo) - 86 (stereo) - 638W (stereo) / 749W (mono)
Naim NAP 250 DR - 0.005% - 86 - 162W
Pascal X-PRO - 0.0052% - 86 - 2000W
D'Agostino Relentless Mono - 0.0055% - 85 - 2730W
Hegel Music Systems H590 - 0.0055% - 85 - 525W
Simaudio Moon Evolution 870A - 0.0055% (stereo) / 0.014% (mono) - 85 (stereo) / 77 (mono) - 543W (stereo) / 1520W (mono)
T+A PA 3100 HV (+ PS 3000 HV) - 0.0055% - 85 - 600W (725W)
Accuphase E-260 - 0.006% - 84 - 157W
Chord Ultima Ultima 2 Power - 0.006% - 84 - 1285W
Electrocompaniet AW400 - 0.006% - 84 - 655W
Hegel Music Systems H360 - 0.006% - 84 - 468W
Musical Fidelity M8xi - 0.006% - 84 - 940W
Pascal U-PRO1 - 0.006% - 84 - 280W
Soulution 530 - 0.006% - 84 - 273W
Parasound Halo A31 - 0.0062% - 84 - 352W
Mark Levinson No.53 Reference monoblock - 0.0063% - 84 - 1080W
Accustic Arts Audio Mono II - 0.007% - 83 - 385W
Nagra HD AMP power - 0.007% - 83 - 475W
Pass Laboratories XA200.8 - 0.007% - 83 - 480W
Peachtree Audio nova300 - 0.007% - 83 - 500W
Schiit Audio Aegir - 0.007% - 83 - 43W
Parasound Halo JC 1+ - 0.0075% - 82 - 830W
Bel Canto e.One Ref1000M - 0.008% - 82 - 1200W
Jeff Rowland Design Group Model 2 - 0.008% - 82 - 126W
Luxman L-509X - 0.008% - 82 - 220W
Rotel Michi M8 - 0.008% - 81 - 1793W
Mark Levinson No.5805 - 0.0081% - 81 - 210W
Pascal S-PRO2 - 0.0082% - 81 - 490W
AVM Ovation MA8.2 - 0.0085% - 81 - 1320W
Hegel Music Systems H160 - 0.009% - 81 - 270W
Luxman M-800A - 0.009% - 81 - 280W
Pascal T-PRO1 - 0.009% - 81 - 500W
Yamaha M-5000 - 0.009% - 81 - 256W
Rotel RB-1090 - 0.0095% - 80 - 750W?
Moon Neo 340I - 0.01% - 80 - 166W
Marantz HD-AMP1 - 0.01% - 80 - 111W
Parasound Halo JC5 - 0.01% - 80 - 666W
Parasound Halo A 21+ - 0.011% - 79 - 620W
Classé Sigma 2200i - 0.012% - 78 - 410W
NAD D 3020 - 0.012% - 78 - 68W
Constellation Inspiration Stereo 1.0 - 0.013% - 78 - 480W
Emotiva BasX TA-100 - 0.013% - 78 - 95W
Naim Nait XS 3 - 0.013% - 78 - 130W
Pass Labs INT-25 - 0.013% - 78 - 50W
Anthem Statement M1 - 0.015% - 76 - 2120W
Gamut M250i - 0.015% - 76 - 630W
Hegel H190 - 0.015% - 76 - 280W
Moon 600i V2 - 0.015% - 76 - 210W
Schiit Audio Ragnarok 2 - 0.015% - 76 - 100W
NAD Masters Series M32 DirectDigital - 0.015% - 76 - 190W
T+A M 40 HV (HC) - 0.015% - 76 - 250W
GamuT Di150 LE - 0.016% - 76 - 400W
MBL Corona C15 monoblock - 0.016% - 75 - 520W
Anthem Electronics STR - 0.017% - 75 - 400W
Creek Evolution 100A - 0.017% - 75 - 180W
Harman Kardon HK 990 - 0.017% - 75 - 300W
Mark Levinson No.585 - 0.017% - 75 - 390W
ICEpower 1000ASP - 0.017% - 75 - 1175W
Audio Research REF160M mono - 0.018% - 75 - 165W
Emotiva XPA-DR2 - 0.018% - 75 - 1020W
Krell K-300i - 0.018% - 75 - 300W
Cambridge Azur 851A - 0.019% - 74 - 220W
Ayre Acoustics MX-R Twenty - 0.02% - 74 - 595W
Constellation Audio Taurus Stereo - 0.02% - 74 - 665W
Chord SPM 14000 Ultimate - 0.02% - 74 - 980W
Emotiva XPA Gen3 - 0.02% - 74 - 520W
Cary Audio SI-300.2d - 0.021% - 74 - 500W
Krell Solo 575 - 0.021% - 74 - 940W
Parasound Halo A23+ - 0.022% (stereo) - 73 - 275W
Pass Laboratories XA60.8 - 0.022% - 73 - 240W
Krell FBI - 0.023% - 73 - 667W
Ayre VX-5 Twenty - 0.0025% - 72 - 340W
Bel Canto Design Black ACI 600 - 0.025% - 72 - 515W
Mark Levinson No.536 - 0.025% - 72 - 800W
Moon by Simaudio Neo 340i - 0.025% - 72 - 200W
Moon by Simaudio 888 - 0.025% - 72 - 1300W
Jeff Rowland Design Group Model 1 - 0.028% - 71 - 140W
Verity Audio Monsalvat Amp-60 - 0.028% - 71 - 145W
B.M.C. Audio Amplifier C1 - 0.029% - 71 - 275W
AVM A 6.2 Master Edition - 0.03% - 70 - 298W
NAD Masters Series M10 - 0.03% - 70 - 295W
Simaudio Moon 400M - 0.03% - 70 - 618W
T+A PA 3000 HV - 0.03% - 70 - 460W
Ayre Acoustics VX-5 - 0.038% - 68 - 286W
Pass Laboratories INT-60 - 0.04% - 68 - 125W
Krell KAV-400xi - 0.046% - 67 - 350W
Nagra Classic Amp - 0.06% - 64 - 121W
Ayre Acoustics EX-8 - 0.07% - 63 - 125W
Musical Fidelity Nu-Vista 800 - 0.07% - 63 - 500W
Parasound Halo Integrated - 0.072% - 63 - 270W
Dan D'Agostino Momentum monoblock - 0.076% - 62 - 1115W
PS Audio Sprout - 0.077% - 62 - 57W
Pass Labs INT-250 - 0.08% - 62 - 397W
Unison Research Unico Due Integrated - 0.09% - 61 - 205W
Gato Audio DIA-250S NPM - 0.09% - 61 - 480W
Gryphon Diablo 120 - 0.1% - 60 - 240W
Gryphon Diablo 300 - 0.1% - 60 - 473W
darTZeel NHB-468 - 0.11% - 59 - 205W
Devialet Expert 140 Pro - 0.11% - 59 - 205W
Audio Research REF160M - 0.17% - 59 - 165W
Electrocompaniet Nemo - 0.17% - 55 - 1145W
First Watt J2 - 0.26% - 52 - 13W
Dan D'Agostino Progression Mono - 0.27% - 51 - 934W
First Watt SIT-3 - 0.4% - 48 - 17W
NAD D 3020 V2 - 0.4% - 48 - 58W

Let me know if you find any mistake.

There are two Rotel RB-1590's listed with different numbers, one shows 100 SINAD and 640 watts while the other shows 91 SINAD and 805 watts. Are those different amplifiers, maybe one is newer but has the same model?

 

[Matias]

not sure whether mistake or not but parasound hinto vs hint6 differing that much seems somewhat suspicious to me...

The latter is below, fig 18, I read about 0.082% at 5W.
https://www.stereophile.com/content/parasound-halo-integrated-integrated-amplifier-measurements