Yamaha A-S Series Amplifiers: Differences between the A-S1000, 2000, 1100, 2100, & 3000?

[@carywatmore]

Great review - and the passion. Time to update it with the current A-S1200, 2200 and 3200

[@cdavidhord]

This is the best real equipment review I have ever observed. Thank you, really helped me!

[@Vuchswax]

Thank you for your extremely detailed video. I too have an A-1000. I bought it new in 1985. 15 years ago it stopped working. I tried to turn it on one day and it just didn't turn on so I put the stereo away. A friend suggested that I have a tech look at it so I took it in three weeks ago. I sold my Denon DP45 TT in 1989 and after listening to a buddy's TT several years ago I started regretting selling mine. I won a Denon DP62L on ebay the night I took my amp to the tech. The TT arrived within a week so the fuse was lit! I went back to see the progress on the A-1000 and it hadn't been looked at yet. The tech gave me a Yamaha CR 840 to borrow while he worked on my amp! Anyway I'm considering purchasing one of the A-000's. Watching your video has convinced me I will go with the 1100, 2100 or 3000 depending on what I can negotiate price wise. Several questions I have for you are: how does the A-1100 to A-S3000 compare to the A-1000? The tech is about 50/50 on fixing my A-1000 at this time but I am interested in your opinion. I have Infinity RS 4b speakers. I also have a dbx 3bx and a ADC 315SS Eq/Spectrum Analyzer. After watching your video it seems best to keep the tone controls neutral. What's your opinion regarding adding those components into the system? Would that be a way to introduce some tone options while still bypassing within the amp? Does adding the extra components detract in anyway? Thanks!

[@twenty4seven368]

You’ve put a lot of effort to put this together. BRAVO!!!

[@miza007iphone]

I never though I b getting a class top knowlege ,. Thank you .. I appreciate ur review ... An Yamaha Amp review, can't get better .. great work

[@trubadyr99]

I appreciate your passion for quality audio and willingness to explain things! Hats off! Thumbs up! Subscribed, hoping to view more of your excellent videos.

[@TheKent2288]

Thanks! This is a must watch video for any audiophile consider the Yamaha AS series of amplifiers (like myself). It would be great if you do a similar video for the latest series (R-N2000A, AS2200, and AS3200). I was agonising between the R-N2000A and AS2200 but your video helped me go with the AS2200 as I value the headphone amp section and XLR balance input for only a little bit more money (assuming . Still, all the other functions of the R-N2000A like loudness control and YPAO are really enticing. Handy to have DAC, streamer, and HDMI input as well as that can be my main media system to compliment my TV. Subbed :)

[@sjors01]

it was an enrichment a clear and honest story that makes the choice much easier. I now go for the 1100 instead of 2100. I am still considering the Denon pma1600 or Denon pma2500. thanks again

[@RabidNemo]

I went with the 1100 as well. There may not be quite as much shielding as the 2100 and the 3000. However that extra shielding is primarily designed for the XLR inputs and if you don't have need of XLR like myself it's extra money that doesn't need to be spent

[@bradleyfried]

Recommended retail price in Japan for the 3000 is 470,000 JPY which at current FX rates is about $4,250. This is much closer to your assessed fair value price for the build.

[@reyiiteleco]

Do the same explanation for 1200, 2200 and 3200 please 👍🙏🏻🤓

[@carywatmore]

Looking forward to a similar review of the A-S2200, 1200 and 3200. Excellent review by the way

[@3ndru1]

Yamaha A-S2000 does support to turn off op-amp ( bass & treble ), in neutral position it makes click like A-S2100 and others. In fact A-S2000 do have 3 separate amps: 1. Flat pass through 2. Bass 3. Treble. Notice that A-S2100 have in XLR -6db filters that was not presented in A-S2000, that may be useful when playing from Oppo where XLR output is 5v and yamahaha input is 4,5v. You can use on cable filters but here you have integrated. In sound difference between A-S2000 and A-S2100 is noticeable less noise on volume above "10" in 2100, bass correction is giving deeper and more powerfull bass sounds. Generally in 2100 sound is better including upgraded MM/MC amp in 2100. Generally in sound difference between A-S2000 an A-S2100 is very marginal except noise an bass control knob. Before you replace any of Yamaha A-Sxxxxx amp tip newer replace speakers as they always change sound mooch more than any amp.

[@jonathannolan6910]

I'm somewhat baffled myself as to why the OP said that... The A-S1000 & A-S2000 acts the same as all the other amps in the series - with tone controls in neutral, all "extra" circuitry are switched out and I know there are no op amps in the direct-mode signal path. My problem though is that I just cannot stand meters on an integrated amp, makes it look like the cheap "Tandy" products from the 1970s. When my A-S2000 breaks down one day I'm going back to KT88 tube-based amplification.

[@dwh3480]

Very awesome technical review, I look forward you can compare: YAMAHA A-S1200, A-S2200 and A-S3200.

[@Ioan.Nicolae]

Extraordinary work! Thanks to this comparison, I saved a lot of money! Well done job!

[@Simon-dn9kv]

I think the 2100 doesn't get enough credit in this video. Headphone amp aside, the big difference to the 1100 is that the 2100 offers dual mono, even unbalanced inputs get split and handled separately resulting in an even lower noise floor and thus a deeper and wider soundstage. The difference to the 3000 apart from the points mentioned in the video are (according to Yamaha) shorter signal paths, better wires, better soldering points, better internal shielding to get the noise floor down even further.

[@stereopolice]

The 2100 is the best overall value; wish I had one.

[@barrybrennan2135]

@@stereopolice Is it true the phono stages have poor overload characteristics, spec wise?

[@stereopolice]

@@barrybrennan2135 50mv rms for MM. Seems fairly reasonable to me. What's the issue? I've not had a problem with my 2M Silver cart. None whatsoever.

[@apg91]

Great in depth review. I was considering buy a used 2000. Thank you! I will wait in this case.

[@barrybrennan2135]

@@stereopolice Thanks, still hoping to buy one!

[@tonyrome3119]

thanks for the time and effort on your research design and complexity of these amps . You helped me in my decision in what model is the Best Buy for the price. Excellent work.

[@albertloto8438]

appreciate you done here,the passion and time you spent..if you can,and if you would compare the new release version,the A S-1200 for the A S-1100...whether to get this a s -1100 or the a s-1200 im still confuse what to get between the old or the new one.

[@asmrtwitch8723]

Also I'd be interested to know why you think OP amps are so evil when they are used in so much audio equipment. If you could sit them in a neutral position instead of them switching off, how different really would it sound to the average listener?

[@rctankchannelone7558]

I have the a-s1000 you can hear the relay click off when you place the tone controls to flat so it does bypass them

[@christopherdoolan925]

I have the A-S2000. From the manual: When both the BASS and TREBLE controls are set to the 0 position, audio signal bypasses the tone control circuitry. It definitely clicks when you move the tone controls. I always leave it at the 0 flat position.

[@heinzbecker691]

i have also the 2000 and it clicks when you turn into 0 position.

[@skip1835]

An amazing journey through these amps - thank you for focusing your "microscope" on these various models - fantastic insight, so educational - - and yes, in answer to your question - - VERY interesting.

[@stevebirmingham9650]

I bought a UK AS1100 amp delighted with the product superb build quality and outstanding clear crisp neutral sound very pleased very good value for money cant fault it a really good investment nice one Yamaha

[@stevenlsmith18738]

I have found something informative in all your videos thank you and keep them coming. May buy a 2100 this summer, then I can compare it with 2000 and those cheap op amps and other inexpensive parts in the signal path.

[@stereopolice]

LOL, love your sarcasm. Really!

[@segervind]

Yes....well said, you really get the feeling that these OP amps are just so bad and how dare the RD department at Yamaha with 1000 upon 1000 of testing and research hours and all those people with their many many years of studying to get there education to put a OP amps in the signal path. Same on them! (Yes if you are wondering, I'm being sarcastic 'stereopolice')

[@stereopolice]

One should never run out of coffee or op amps. You can get a pack of 10 op amps from Amazon for $6 right now; even cheaper in bulk on eBay. I even put one or two op amps in my coffee sometimes for extra boldness.

[@joaquinbarreto9398]

Wow this is an amazing video! I've searched everywhere and haven't been able to find a detailed explanation like this talking about what the difference are. So between the 1200/2200/3200 basically still the best three right? I'm going to order the 1200 since I don't need balanced inputs.

[@steelydanfan100]

I bought an open box A-S2100 in black due to the excellent reviews and my lifelong impressions of Yamaha quality. I could not be happier with this amp, I may fiddle with speakers and interconnects down the road, but the Yamaha has found a permanent home. I paid $2400 for this amp, the quality is just amazing for the price paid and I run it with zero tone controls, it just doesn't need them. A "Natural Sound" indeed !

[@kinasc1575]

Excellent stuff, good work done by that man!!!

[@zaoria123]

In your review of the A-S301, you briefly compared it to the A-S1100. Could you please expand a bit on their differences? Thanks!

[@Dreez76]

Thank you very much for this information. I'm researching the differense between the 2100 and the 1100, debating wether or not the 2100 is worth 500$ more. You earned a new sub because of the hard work and knowledge you put into this video. Merry christmas & happy new year.

[@stereopolice]

Heck yeah it is. Go for the 2100 if possible. I would if I had it to do again. Regards ....

[@Dreez76]

@@stereopolice Since i never use Headphones, i find it hard to validate any reason to pay 500$ more for extra good headphone connector. And i'm not even sure the -3dB signal distortion is worth the 500$.

[@sensotron]

Nice video! I have been using Yamaha amplifiers since 2018. I started with A-S1100, then A-S2100 and now I have A-S3000. Each of these amplifiers is worth the price. I will say that the stage at A-S3000 is the widest and deepest.

[@asmrtwitch8723]

That's interesting, awesome video thanks! I've got an A-S500 that I am looking to upgrade. I mentioned in another video to get the A-S500 to sound like I want, I have to use the loudness. The reason for this is if I don't I lose low end and defition at low volumes, and at higher listening levels the sound is too harsh and bright. I appreciate I am only using $1000 speakers, and a $200 DAC, but I think at the moment the amplifier is probably the thing that needs to be upgraded. Add to that that the amp introduces some distortion especially in the low end above about 30-40% volume and sounds more harsh the louder it gets. The setup does sound nice, I mean acoustic and easy listening still sounds really good. But if you want something more upbeat it can start to lose it. Certain styles like rock or certain digital music can sound harsh. It really needs the right songs and music to be played, I can't enjoy everything on it. I've seen an a-s1000 used for £450, I was tempted, but do you think the a-s1100 for £1100 new (more than twice the cost) will be worth it? Another thing is I like to emphasise some of the low end. Now this might be needed because of the amp I am not sure, but I have bass tone control always on 1/3rd with the current amp. So I am thinking if I want that anyway on the A-S1100 than the OP amp in use on the A-S1000 doesn't really matter, although I understand there might be some cases where I may want to see what it sounds like by bypassing it. Either way I think the 1000 vs 500 should be an upgrade? As long as it doesn't sound harsh or not full enough at low volume without the loudness control I am used to. Thanks!

[@Driving_Somewhere]

Love your summary!

[@Technologov]

Great review ! How about cheaper A-S701, 801 and 501 ?

[@Duijnkiller]

As701 is best value for quality

[@tomkennison4337]

Great video. I'm looking for 2100 new. Don't think there is much of a diff between the 2100 and 2200.

[@kidsfriends8269]

First time I watch one of your videos and subscribed at the 10' mark. Excellent explanation.

[@avjake]

The fully balanced circuits in the 2100 and 3000 lower the noise floor by 3dB (everything else being equal). The balanced XLR inputs reject noise from outside interference better than unbalanced lines

[@stevenlsmith18738]

I agree that the as1100 and 2100 are the best buy. I picked up an as2000 on sale last year, I must say I really enjoy those cheap op amps. I also have an a1000 and several other older yamaha integrated amps and receivers, they all have a unique sound some good some not so good.

[@kurtzcol]

awesome video ,all i ever needed to know about my as1100 and more thanks for the hard work

[@dirkklinkenberg8912]

I understand that you are not a fan of op amps, well that is fine, but do not call them cheap, the OP275 used in the tone control is a $4.5 component on ebay, and I say on ebay because that is were you got your power transistor prices. I work in electronics, I am a designer and know in bulk the prices go down a lot, for the OP275 it will be about $0.80 if you buy 1k, same goes for power transistors....The price for the BA1521 op amp is about $3.00 if you buy 1 so a big difference from what you call a cheap 0,10 component...those op amps are special designed components, download a data sheet and look at the specifications....The big difference between the 1100 and the 2100 is that the design is balanced across the whole design (line amp) and the 1100 is not. And believe me the 2100 is the best buy and is the better sounding amp.

[@ritabrata86]

Loved this video. I cannot understand why yamaha is so underrated, Can you please share your thoughts on RN-803 or any As800 series please.

[@ultraodd]

I have A-1000 and I definitely hear a "click" when I set my tone controls to neutral. Dunno if that is a bypass, but a click is there.

[@marknelson4699]

Hats off to you on what is really an amazing review of these amplifiers. I was really toying with the idea of investing in a 3000 and now I guess my minds made up. It's the 2100 all the way. Thank you so much in what is an incredible break down of these amplifiers. Peace brother🤟

[@stereopolice]

Thank you man I gave up on my channel due to total utter lack of appreciation and disrespect on my channel but I'm glad you appreciate what I did.

[@marknelson4699]

Please don't whether it's lack of respect or appreciation give up. You have a really good knowledge of electronics and it would be ashame if you didn't share that. I'd appreciate and look forward to seeing any new reviews. Peace brother 🤟

[@shockhazard168]

Very informative. Many thanks!

[@Dave78Ivey]

Do you know if the phono stage circuit schematics are identical for the A-S1100 and A-S2100? I’m asking because on the Yamaha website they show pictures of the phono stage boards for both and they are different. Also, the specs are slightly different on the Yamaha website as well. I could see this being an error on Yamaha’s part when creating the layout for the webpage. I emailed Yamaha but I’m not holding my breathe for an answer. I would really like to know for sure since I plan to purchase one of these amps and my primary source is vinyl. Any input you have in the matter would be greatly appreciated. Thanks for the excellent content!

[@robertomurphy7407]

HI, I have the AS1100, as far as I know the phono input is the same as the AS2100. I think I read that. Anyway the AS1100, comes with a high quality phono. You can check the reviews with Cructhfield, and their is a review on youtube, that someone has his pre amp disconnected, because the phono on the Yamaha amp is better. One or two people mentioned it comes with high phono input, which is unusal in amp. I already had a pre amp before I got my AS1100, and I can't really tell any difference between the built in phono. Also check the Yamaha AS801, the phono on it is suppose to be good as well and this amp is a lot cheaper. So if it's vinyl your mostly interested in, like myself, it's worth checking out.

[@csabakereszturi945]

Does it accept LOMC cartridge?

[@MrRonnmaui]

Yes, excellent stuff there. Over my head but extremely useful. I am looking at those amps and needed some guidance. I was looking at used amps like these against Luxman and Accuphase for longterm enjoyment. Maybe unravel those for us next.

[@ttrons2]

I wish you would comment on the main capacitors which are 20% larger in the 2100

[@nikkonkde]

Great research. 👍

[@a9fc]

Awesome vid, where’s the vid that talks about the circulation design?

[@RoyFJ65]

Floating balanced technology reminds me of Yamaha ZDR tech in a way. I happen to have the M50 that used that rule as well as HCA MX-1, incredible sound on both played back on my NS-1000M speakers. Very nice detailed review btw.

[@matrixsynth]

So in a few places in the comments below you mention you would go for the 2100 now. What changed?

[@yippie6862]

Power supplies on the A-S2100 and A-S1100 are somewhat different. Caps in the 2100 spec out at 22'000µF per cap x 4 vs. 18'000µF per cap x 4 for the 1100. The 2100 has 1 balanced input. Better headphone amp with trim sections. An internal metal brace. The ability to to switch between MM/MC phono on the front. Are those differences worth $1000? Probably not. $500, maybe.

[@mioryderoncgnp1589]

I was just about to buy a mint Yahama A-S2000, well after watching this video that deal is toast, thanks so much!!! , I'm going to get a A-S2100... What a amazing video, 👍

[@smellylittlekiwi5743]

Interesting....my A-S1000 has a definite click and millisecond sound delay when turning tone controls off flat! I would like to hear a comparison between the 1000/2000 and a 1100 to be sold on upgrading.

[@RavageReeves]

The as1000, as 1100 and as 1200 all sound the same. Don't believe the bs. I'm a blind test you would know the difference

[@juanmillaruelo7647]

Great stuff! Just what many of us need. Thanks a lot!

[@koimanseattle]

is A-S1000 Class AB as well?

[@johnmitchell7196]

This is perhaps the most helpful of any audio related videos I've ever seen on KZbin. I currently own a A-S2000 and love how it sounds but have read how much better the A-S2100 sounds. My dilemma was, was it worth spending thousands more for maybe a marginal increase in performance? After watching this video, I can clearly see the difference between the two generations of amplifiers and how much better built and designed the 1100/2100/3000 is. It's also made me realize I really don't need the balanced inputs or the upgraded headphone amp as I would never use either. I can get the same level of performance for $1,000.00 less! Thank you so much for this info. You have a new subscriber to your channel!!

[@simplereef4854]

You can upgrade the tone control opamp of the AS2000 using Burson opamp (v5). I upgraded mine, and it sound almost identical to the AS2100. I would not say upgrading the op amp will solve all of your problem, but at least it give you an easy upgrade path instead of buying a brand new amp. The second thing you can upgrade is the fuse. I upgraded mine, and it increases the sound of the AS2000 quite dramatically. The total cost of the new opamps and the fuse is under $350 (still way cheaper than buying a brand new AS2100) So, try both if you feel like not buying a new amp

[@aaronmathias6739]

@@simplereef4854 Hi mate! Where is the fuse located in the A-S2000?

[@uzku]

Great video, I'm gonna go out get the 1100.

[@vladcarpenco8513]

Great review! Please share if Yamaha AS3000 japan market 100v power can be converted to 120volt to be used in the USA. Thank you.

[@sz5171]

It takes 2 tiny wires and 10 minutes of time to disolder 6 resistors an 2 caps to override those evil opamps in a-s1000/2000 and make them fully discrete! And difference between 1x00 and 2x00 not only in xlr inputs, they have higher class/quality parts(caps, resistors) all over the amp.

[@olivere.3166]

Great video, best review!

[@michaelphillippi4676]

Good information, I just subscribed. Thanks. I would be interested in intended use for the 12 volt triggers?

[@kens.213]

I owned an A-S1000 for 5-6 years, never had a problem. I now have the A-S1200. Sounds slightly different, and plenty of power.

[@RavageReeves]

Is it worth spending more to upgrade to the As1200. ? I have noticed alot of people saying there isn't much difference between them

[@constantintichirel7490]

Very goog explication! Congratulation!

[@morksbeanbag]

You are referencing the wrong section of the schematic for the power supply capacitors. The 3300uF caps are small caps and are for filtering the rails of the VA stage only, not the output stage. The output stages use 22000uf/63v caps for the higher end models and 18000uF for the A-S1000/1100 with the A-S3000 having screw terminals and heavy gauge wiring for much better current availability.

[@stereopolice]

Did I screw that up? Darn. Thanks for pointing that out. Makes perfect sense in hindsight, those caps are way too small for a main filter; I just wan't thinking at the time I suppose. I'll go back and take a look.

[@morksbeanbag]

The transistor array at 43:25 is a current mirror circuit I believe.

[@stereopolice]

Well, we don't have a direct collector to base connection in the reference current side that would make it a current mirror. If it is, it's atypical. I agree though that one would expect to see a current mirror on top a differential amplifier. In one sense, these transistors appear to be merely taking the place of what otherwise would be resistors; but because they are transistors, would provide some variability in dropping voltage for some reason (some type of regulation). So, in short, I don't know without further study. Perhaps some guru will stumble upon this post and clear it right up. Regards ....

[@Momo85421]

I think Ben Smith is totaly rigth about that ! In other words, you did screw that up... for the rest : excellent analysis :)

[@hanzel-fb7jo]

Thanks for the repot. One thing I don't understand is why Yamaha didn't include the loudness controls with these hi-end amps?

[@giangvu7902]

Just bought the A-S1100 and can’t wait to get it!

[@stereopolice]

I'm telling you the sound is fantastic on so many levels. I sure hope you agree. It's the best amp I've ever had or heard (to my ears), anyway.

[@matrixsynth]

So, you mentioned in the comments that you would go for the A-S2100 now. What has changed?

[@DjentChales]

Great in depth spec comparison. Glad l got the 1100, I don't need headphones and I don't use/need balanced in hifi.

[@carywatmore]

Wow very detailed and excellent

[@scottpeck1149]

Exactly the material I look for and at. Thanks!

[@davidslaney65]

this is one mans opinion...if you are buying a rig with tone controls isn't the plan to use them ? I bet you could not hear the difference between A-S2000 and the A-S2100. I have enjoyed your long reviews and insights, thanks

[@andrzej_dacko]

It is a great and useful review giving a lot of input also for people as me without a deep electronic knowledge background. It helps to make the buy decision as well. Btw I am really curious how would look like similar comparison between e.g. the winner, the A-S 1100 and an old one, the CA 1100 or CA 2100. Maybe it is worth to do such. I currently have the CA 2100 after refurbishment but consider the upgrade to A-S 1100.

[@samiam9059]

Guess all are class A/B amplifiers?

[@cabronesse386]

You really are the hi-fi police, a damn good stereopolice, good job and thank you for nurturing us!

[@stereopolice]

Thank you!

[@ttrons2]

Super review. Made my mind up and I am buying the 2100.

[@stereopolice]

Right on - If I had it to do over, I would have gone with the 2100. Best value for what you get. Enjoy.

[@ttrons2]

YOur comments that you perefer the highs on the a1000 to the as1100 would you say that the mosfets soften the sound too much. Hard to judge in a store because of different speakers

[@mornelategan1651]

I own an A-S1000 amplifier and was wondering after watching this video. When I turn the balance / treble dial to the zero position, I hear a relay clicking and when I turn it away again, I again hear a relay clicking. Could it be that it does actually bypass the op-amps? Or what would cause that click?

[@SrenJessen1976]

What a it the large capacity carbon sheath block capacitors. Which differences did you find there between the 1100, 2100 and 3000? I’m not referring to the small 3000 uF smoothing capacities but the capacitors supplying in the order of 100,000 uF (total).

[@mikaelsahlstrom]

the a-s 1100 have 4x 18000 microfarad and 2100 have 4x 22000. dont know about the a-s 3000.

[@toddd7444]

Yamaha A-S2200 any thoughts on thanks wheelchair larry

[@jamiesmith6838]

Very well done and informative. Thanks for all your efforts. I was seriously looking at the A-S3000 Vs the Luxman L-509X until this indepth breakdown? Luxman or Yamaha integrated amps. Which is closer to the mark?

[@clintlaitouale8380]

Very late answer, but do not hesitate, go Luxman, at least its value on seocnd hand market will be far better . .not speaking about build quality, and of course sound refinment.

[@elvisisalive2716]

I finally got my 2100, music never sounded so good. Punching myself in the balls for every owning a class D amp, after hearing the warmth the 2100 brings. Streamer via xlr inputs is amazing.

[@krisgudmundsson4839]

Great comparison; I'm going to order the A-S2100 next week. Now the speakers will be the next dilemma. Any suggestions?

[@stereopolice]

I wish I had the 2100. Speakers are just such a personal taste thing, I wouldn't want to steer you wrong. Of course, if you like horns, the Klipsch Forte III; they are just such a perfect match to the A-S1100. But, there are so many great and affordable speakers out there. Perhaps some others can chime in here ... Once that I heard last week was Sonus Faber Venere 3.0. They sounded incredible to me. Not nearly as dynamic and life-like as horns, however, they were worth every penny in my opinion. Good luck.

[@mrk131324]

What is important to know for you: The 2100 has enough power for most speaker and more important is has a very step slew rate, so even bigger towers should be no issue.

[@rogergriffith1559]

Thank you. You saved me handful of money

[@BughunterX]

Hallo, thanks for this very informative description. Having a 2100 myself i wanted to ask you something about the tone controlls that i noticed. When using Bass and Treble i can clearly hear a relay switching a neutral position, but no such such thing when i use the Balance knob. I got my amp used (bout 1 year old), so i can´t tell if this is normal or not...

[@stereopolice]

Perfectly normal. The relays in the tone control path serve to bypass the op amps when in neutral. The balance control has nothing to do with the op amps, and hence nothing needs to be bypassed, thus no relay.

[@efthivoulos]

I own an AS-1000 . Had no idea that those horiible OP amps could not be bypassed. Just ordered the AS2100 after watching your video!

[@svach]

have the as-1000 as well. You can definetely hear the relay click when you put all tone controls in neutral, so the op amps can be bypassed. I think he 's mistaken here

[@johnkinder5677]

Great informative video.

[@JImmY1982MinG]

Hey there, stereopolice. Another great video just in time to help a poor guy like me who happens to be in the market for a new amp. I am new, and I am torn. I've been having my eyes on the A-S801 for some time now, but everyone keeps telling me I should look up separated vintage gears like m4/c4 or m50/c50 and so on. My budget is about $1000 but it seems that I really should move it up a bit. I have four pairs of speakers so far and they are: Klipsch Cornwall I, Frazier Mark V, Yamaha NS-690, and KEF 105.2. Help...

[@vicg5323]

Awesome comparison. I bought the AS-2100 on the blind. Was looking to get a Rotel Pre amp and solid state amp and did a comparison A/B and ordered the Yamaha AS-2000. By luck that model was out and I was offered the 2100 at cost. I thought the meter was cool..I knew nothing about mosfet. boy did Iuck out. your review re enforces how lucky I was. I understand your comment that there is no worthy difference between the 2100 and 3000, but aside from parts and features, does the copper or heavy case add to greater fidelity?

[@stereopolice]

I didn't even consider the chassis, because I see absolutely no rational, scientific, and credible evidence as to how the chassis of the 3000 could result in any improvement to the fidelity as compared with the 1100 or 2100. I'm willing to listen if somebody could explain it, however, I'm skeptical as of now. Regards, thanks for the reply. I'm happy for you that you received the 2100.

[@vicg5323]

Yes, I agree. But I certainly hear a lot about Aluminum and Copper shielding, but have no proof of it.

[@stereopolice]

There's merit to the noise shielding aspect for sure, but the 1100 is noise free as it is. So, if the 3000 is extra noise free, then we end up with 0 x .5 = 0. In other words, what's the diff LOL. Cheers.

[@stereopolice]

I'll take another look at Yama's chassis claims again, and see what they say is the benefit.

[@stereopolice]

Yamaha's claim that the extra beefy chassis of the 3000 reduces the effects of "vibration" and allows for short signal paths. Well, as far as the "vibration" thing goes, I'd say you need a 3000 if you live on a moving train. Otherwise, well ... not sure the effects of a standard homeowner's vibrations have any effect on the movement of electrons through conductors or semiconductors. Tube equipment is another story; you can tap on tube and hear the results in the speaker. Transistors ... well, tap all you want, you won't hear anything. Signal path length? There is certainly merit to having short signal paths, I have no problem with that claim. Regards ....

[@sercanozdemir7201]

Hi Friend What do you think about new A-S2200 and A-S3200? I think the best value for new designs is the A-S2200. Thanks you ...

[@RainbowCharade]

hi, sorry if off tangent, but any thoughts on the A-S701? Is the dac good enough? Thanks!

[@mrk131324]

I paired mine 2100 with Nubert NuVero60. Unbelievable value for real high end boxes.

[@ricky_ph9774]

hey. that's my dream combo! a killer high-end set-up for 'midrange' budget. but I'm in Manila. expensive to import, esp from Germany to Ph. isnt nuvero 60 hard to drive with 83db efficiency? how is 83db nuvero holding up with the amp? can it play satisfyingly loud with as2100 160w max @4ohms? im assuming it can play decently. please feel free to share your experience with this combo

[@mrk131324]

ricky _ph NuVeros need some power indeed. I drove them wit a Yamaha A-S501 first but only with 2100 they started to show their potential. The 2100 is powerful enough. It‘s not the total watts it‘s the much better slew rate (how fast the power can be provided).

[@ricky_ph9774]

@@mrk131324 thanks for the feedback, martin. enjoy your nuvero-yamaha eargasm :-)

[@carloseduardoce89]

Very nice explanation. Certainly this helps to make a buy decision. Do you think an used A-S1000 for 600$ would be worth it or is it paying a lot of money to listen to those cheap opamps? Thanks!

[@richardblaauwgeers4349]

Did you buy the a-s1000?

[@fongvang935]

$1,000 can get you a very good headphone amp separate though... Im a bit disappointed they didnt put the Torridial transformer in the 2100...but then again there would be no reason for the 3000.

[@ioangheorghian9611]

buy a mu-a400 sony amp...

[@clintlaitouale8380]

The story of opamp in signal path for A-S2000 is surprising me. I trust your schematic analysis, but on my A-S2000, when I put tone knowbs to neutral, I actually ear a "clic" that makes me think that there is a hard bypass removing all opamps from the signal path .. Why this clic if at the end an opamp remains ??

[@Hairyderriere]

Thanks for this comparison. Interestingly, the street price for the 3000 is closer to US$5k now...

[@DAM1825]

got the 1100...tx for validating my instincts.....and ears..

[@rafaelalmonte8212]

Personally I really appreciate seen someone go the extra 20 miles just not to stay short in all the informations that so altruistic you want to provide. Information that certainly (-I'm sure-) is going to help so many people make a smarter decision and undoubted safe some money. Human being like you deserve some sort of noble price. Would you say that it could be possible to put the A S3000 VU meters into the A S1100? Obviously some cutting has to be done to A S1100 face panel. Much health to you and your family. Dios les bendiga a todos

[@andreiaudio]

Great video! It answered all of my questions regarding the differences between the as models. I currently own the as2000 and was thinking about upgrading to 3000, but after watching your video i will pass. Do you think that mos fets sound better than bjt? In what way? Thank you, and best regards!

[@andreiaudio]

Btw, as2000 uses 4 x 22.000 uf caps.

[@PAULPM15S1DYNXCITE]

I own the AS- 2000 I love it ! If any wants to sell there old not so good run of the mill amp and up grade Sell it to me 😀 If you do some research a few people have upgraded and have noted the difference between the A’s-2000 and the A’s-2100 is One has meters.... they sound the same 😐 I can’t agree or disagree I haven’t listened to both - but they have herd both and there comments are in a lot of reviews. Interesting to see in this video is the money jump in as 1000 To the A’s 3000 models is a few cheap parts

[@csabakereszturi945]

And those meters are plain useless and disturbing.

[@edwardmiller6073]

Yamaha witch ones have USB DAC and Bluetooth can you find out- Thank You

[@MarianoPW]

Hey buddy, loved your video, very in-depth. I have a Question to you, I live in Argentina, and here prices are all over the place, sometimes yo get something similar to the scale in the US, sometimes you get nothing alike. The thing is I have the opportunity to buy an AS1000, I know you don't like that, but I own a Marantz PM6006 and I'm trying to upgrade. The thing is I can get a 1000 for about 1200 us dollars, but the cheapest AS2100 I can find is about 4000us dollars, I can't find an AS1100. Do you think I'm going to be OK with de AS1000 over the Marantz (not only power but build quality, true tone bypass and so on) or I'm better looking other brands? Thanks in advance.

[@richardblaauwgeers4349]

Did you buy the A-S1000? and how did it sound compared to the PM6006

[@BughunterX]

Yamaha anounced to give us new models in May, the 1200, 2200, 3100. From what i saw on the few rare pics they look indentical apart from a new Mini USB input, that is probably used for diagnosis like on the C5000.

[@ykhm9778]

Hi, indeed very interesting video. I always wanted to have Yamaha A-S1100 or A-S2100. I have Pioneer A-70DA, which is fully balanced, class D against AB here. But. power stage with DIrect POWER MOS (Mosfet) and linear power supply, not impulse one like in other D class amps. How would you rate it against the above two? Would you be so kind to look at schematics and get back with short info? Thank you in advance. Regards PAT

[@breaulenny]

Thanks for your good informative vidoes :) how about the Phono stages..Are there any differences between the 3 models? I have an as 2100 and I love it,,and the built in Phono.. Wondering if the as 3000have another Phono stage, or if the 3 top models have the same.

[@stereopolice]

All phono stages are absolutely identical; all fully discrete, and high quality. Regards ...

[@breaulenny]

Some people say, that the AS models have cheap plastic cables , and this makes the models,,not HIFI. And it is no use tryig difrent speakercables, when the AS have those cheap plastic cables...? What have you to say about those claims:)

[@stereopolice]

Who said this? What is your source please?

[@breaulenny]

I had a question about spaker cables , on a danish forum. My cables are copper with silver. I was wondering if I would get a darker sound from som other cables. One of the answer is, that the as 2100 is not good enough to talk about cables, because of cheep inner cables on my as 2100. Then I came to think about stereopolice :) no better place to goo :)

[@stereopolice]

The 2100 is a super-fine and excellent quality and sounding amplifier. It's well worth investing in decent cables, if you seem to notice a difference. I'm not a big believer in high dollar cables though; my ears have hardly ever heard the difference.