Hypex vs class ab forum. If set much higher than this, it completely screws up class D amp due to increased noise above audible band. Trinnov Altitude 16, Kaleidescape Terra + Strato C, Oppo 203, Roon Nucleus, Apple TV, LG G2 83, Hypex NC1200 x 3 monoblocks (March), Hypex NC252 Feb 6, 2011 · Overly simplified explanation: Most guitar amps are class AB. If you don't know much about it, the chief designer Bruno Putzeys was the person that put high performance class-D amplifiers on the map, producing amplifiers that not only matched performance of classic AB amplifiers but bested them. 7 x 4ohm and 4 x 8ohm (atmos speakers) Apr 26, 2019 · Dimensions: 15. I'm in my early '50s so my formative years in hi-fi, from my teens through my '30s, were all about Class A and AB. Joined. I too traded my older heavier larger class AB amps (Anthem MCA 325 and PVA-8) for newer class D amps. #4 · Mar 27, 2016. Messages. Usually written class AB, not A/B, FWIW. 5dB dip at 12-20kHz in the frequency response linearity of Hypex when comparing vs Purifi. Feb 4, 2023 · The 45 kHz bandwidth came from much testing and arguments. The looks are fine for a well-priced build: The unit is quite light courtesy of rather thin sheet Sep 23, 2022 · I went with March and Nord instead. Sep 29, 2023 · When it comes to high-end audio amplifiers, audiophiles often find themselves in a dilemma between Class AB and Hypex N-Core Class D technologies. If the main one was not frequently hijacked, Hypex Nilai500DIY would be my choice if I changed the electronics. So that is some of the difference. Feb 24, 2023 · Hypex Presents New Nilai500 DIY Audio Amplifier Module. There is nothing about my class a amps that is better than the ncore. Sep 30, 2019 · In class A and AB the phase shift is less than 6º at 20 kHz. This same well measured amp in a review from chris bryant who is well Apr 16, 2023 · In 2023, Class D is a clear winner, and power, price and features will be the drivers of choice between excellent products like Hypex, Purifi, Orchard, and the like. Sheet metal is rather thin and fitment not that great. A typical class D will output rated power for a second before tapping the capacitors out. Note that switching and linear PSUs can ne both used with Class A, AB and D amplifiers. Been reading through the Class D amp reviews (here and elsewhere) and a point of confusion for me are the power ratings, and their accuracy. 2. These class D seem to have massive power ratings. May 12, 2020 · In fact my bias has been towards Class AB. com) Design: Single board integrated stereo ICEpower 700AS2 Class D amplifier with balanced output stage & fully balanced input stage. If your speakers are not terribly difficult to drive, the stereo model should be fine. May 10, 2013 · Don't forget to visit the Class D forum here for a better perspective on the available products. The Levinson sounds noticeably better dynamic than Class D , more life like presentation. mocenigo said: Indeed class D amps with switching PSUs miss a lot compared to Class AB amps with a linear PSU, and even more so wrt Class A amps: cost and the power bill. Cambridge Audio’s new all-in-one player, Evo, uses revolutionary Hypex NCore Class D amplification. The cost should stay under $400. To me, the SQ is much superior with Ncore. Sep 22, 2022 · ATI's class D offerings, their AT5XXNC series, have measured well in both ASR and Stereophile reviews. Class D is easier to live with though. BOSC even better, starts at 30 kHz . Hang on, in another thread I was told that the Macintosh something or other was the best available and at £13. But the IOTAVX PA3 and SA3 stack or a Yamaha A-S701 class AB amplifier are also nice choices. Jan 24, 2022 · MiniDSP SHD is great tool for volume matching in my use case - with 2 DAC outputs, separately digitally attenuate-able in 0. Dec 18, 2023 · Surely an improvement but more trouble than a quality AB amp. Prev. In fact KNOWING that the former are much greener makes you AWARE that they must sound worse. Dec 31, 2021 · The Quads are not super low distortion like modern class D but reasonably low distortion that stays the same, doesn’t get worse as the load goes up like AB’s do. Willem said: The Quad 909 delivers 140 watt ch rms into 8 Ohm and 225 watts rms into 4 Ohm, which is a pretty decent score in my book. Why class d was disparaged by audiophiles is a history lesson, whose time for Sep 30, 2019 · The only Hypex product I've tested so far is the PSC2. To set it lower as Hypex/Purifi do, would be wrong as well. One of the huge advantages of Class D amps is high efficiency, which means low power usage, low heat and small size, which are great advantages in a room like yours, BUT, the AB amps tend to be more forgiving of the speaker's impedance. Many people have encountered broke or burnt units and it seems these modules could be delicate. 3. Jul 6, 2020 · Likes. 75" x 4. I really like a XTZ Edge A2-300 or a Audiophonics Hypex class D amplifier with a nice Topping DAC. Both have their dedicated followers and are celebrated for different reasons. 700d. Sep 30, 2019 · back to "Hypex nCore vs Class A amps" or Class D vs Class A Class A has no crossover distortion Class AB has Class D?: Class D switches also between output transistors, but at a much higher frequency than Class AB (above 20 kHz). Apart from that, many Class AB and H PA amps, and lots of Class AB HiFi amps from for example Denon, Parasound, Uher, Sony Sep 30, 2019 · 36. There are some areas in the attack of the sound that can even surpass standard AB amps but overall, I'm reticent to change what I'm happier to listen with Jul 2, 2021 · The amp should be as small and light as possible, as this will be mounted on a wall, not on a shelf. So for example, is it really OK to run a speaker with max power rating of 150W with these hypex ncore amps Apr 20, 2020 · this is what i wrote on one forum I am researching a class AB amp 3. Sep 30, 2019 · I know hypex is the spec and Measurement champ ! They thing is that these tripath amps play so well in musical terms (sound wise) made me wonder allot about the specs! if i had listen to a Hypex i wouldn't ask ,after getting specs and measurements comes the listening part ! Also Amir tested a hypex 252 and said it wasn't solid performance. With one A800 and one STD-400 I could test both to check the difference in sound quality. Class D has the least hiss of all (well, except Benchmark's THX class AB ). The latest Hypex Nilai, the latest ge Sep 30, 2019 · Speaking about class A "in general" only, makes absolutely no sense. A QSC RMX 4050 will output 4KW into 4 ohms bridged continuously . Many low wattage (<10W) guitar tube amps are single ended class A. YES! The first live stream of this year! And we're going to make it another great one! This time: 3 x NEXT GEN class D. This is a review and detailed measurements of the Buckeye Hypex NC252MP based, 6-channel amplifier. Thinking of taking the plunge and getting an Ncore amp. Kalman Rubinson raved about their 500w model. Luckily, if it did it would be an extremely bad engineered amplifier. The most impressive differences between the Class D and AB are the sizes are much smaller and lighter and run much much cooler. Sep 30, 2019 · Indeed class D amps with switching PSUs miss a lot compared to Class AB amps with a linear PSU, and even more so wrt Class A amps: cost and the power bill. Another option is to keep one Class AB amp for the compression driver and replace the other with Class D. Personally I find them a little clinical and prefer the fuller sound of Class AB, but Class D to me gives cleaner, less distorted bass and makes sense where more bass weight is the goal. Aug 7, 2021 · They demand Class-AB amplifiers. I have tried to ensure that every amp was capable of driving the loudspeaker properly, for the most part the loudspeakers used have all been pretty efficient horns, it has been interesting. I have no great problem with Hypex products that I've heard, including "high end" modules. It will be a month and a half since I changed the integrated amplifier, class AB. The client is not adverse to finding something used, so if there is a $1000 Class D amp out there that commonly trades under $400 on the secondary market, please let me know. 7/8/2021 Edit: Jun 7, 2021 · First I'll measure how much power my amps need. 124. Location. #4. Both have their advantages and disadvantages but as said above class D has come a long way in the past few years. There is not a whole lot to look at here. Typical class D sound is very strong dynamics, absolute silence, and because of that more perception of reverb tails and long decays. Lots of high wattage poweramps are class D because this design allows for smaller, lighter, very high efficiency designs. At the expense of heat, so going above some 30W in a pure class A is almost impossible. The class a amps were only 50 watts. May 21, 2018 · Even Marantz and NAD are using the hypex technology in some of their new amps, and given the years of experience and IP they have in class AB and class A, well, they must be pretty certain about hypex class D. Sep 30, 2019 · Even Hypex says their amps do not need burn-in, their performance and characteristics simply do not change during the first 300 hours. One of the most impressive Class-D Amplifier would have to be the Benchmark AHB2, it gets mentioned here on ASR but I do not know about their overall popularity. May 26, 2019 · gregbny. Class D is smaller, lighter and converts ~90% of the energy into sound (compared to ~30% with class A), so it doesn't heat up. 3k with a switch mode power supply that gives 190 watts into 4 ohms , currently that measures incredibly on the audio science review forum, you may know this forum is pretty hard hitting with a lot of stuff . Any information comparing the Hypex and ICEPower modules would be appreciated. #11. #21. And they have a 7-yr warranty, plus ATI's reputation for reliability and service. Dec 19, 2021. . " If class AB, that's highly doubtful. D. Because the ICEpower does not offer that. The difference between 260 & 205watts per channel on a pair of speakers is nominal at best. I was struck by how balkanized much of the commentary was: armed camps w/Class A and AB lovers on one side, and Class D lovers on the other. Jun 9, 2017 · Hypex Ncore represents the very best in performance for Class D technology, which is why all the "high end" guys are adopting it. 1% - this is a big difference. The amplifier as noted is based on Hypex NC400 modules. Sep 30, 2019 · The fact that, for instance, Purifi based designs have been compared to high current, large power, monstrous Class AB designs weighing hundreds of pounds and found indistinguishable sonically – or very much nearly so – is a hint that they would be the way to go for you. From what I read it is very difficult to build a good class D amp. I use it with Harbeth SHL5+ (AE) speakers in a 12X18 room, and it seems flawless at very high volume. Why class d was disparaged by audiophiles is a history lesson, whose time for revisionism is long overdue. Sep 30, 2019 · Fred Jacquot said: This heater seems to have pretty good measurements. Tonality and overall resolution varies with implementation, so it cannot be generalized imo. That said, I have heard large pro systems with pro grade class D power amps and the beefiest of power supplies side by side with quality pro AB or H amps and the difference was substantial. . The new PURIFI only 1º at 20 kHz. I would like to have your feedbacks regarding Hypex amps longevity / reliability / lifespan (especially UCD). My two sphynx cats would be really dissapointed, as the warm Azur840A is their favourite place in the evening. I don’t miss my AB amps—at all. Oct 20, 2020 · Location: Skope. 11 channels of good class ab could easily weigh 50kg and draw a significant amount of power. Feb 9, 2023 · Howdy, out of curiosity why do you think the Hypex has significantly more output? This doesn't quite make sense to me. 625" x 13. If it's a lot more than a Class D amp I'll consider to invest in quality amps like the Hypex stuff. On high dynamic music like 1812 overture (telerac), when playing it loud. I've only ever owned Class AB amps, and massive linear PSUs (preferably toroidals), huge heatsinks, mosfets, and 50-lb amps are types of signs of quality I've been accustomed to for decades. Sep 30, 2019 · I experimented Class D Amp (PS Audio) vs Levinson 333 vs Krell KSA 200s on B&W 802D3 speakers. 4. The 260watts per channel can drive a pair of speakers slightly less than 1db louder vs 205watts May 8, 2020 · With any class D amp that has limited headroom related to the characteristics of switching power supplies, I would want 1. #1. I was moving up in speakers and needed a change in power and specs. Sep 30, 2019 · The implementation can be very good or awkward, regardless operational class of the output stage. The 400 has better measurements, but more than likely beyond audibility. PEQ can be applied separately to each too which will be very useful to try to compensate for the 0. I have not heard the Purify amps (yet). Based on my listening experience, with both the Hypex Class D amps and then the Mola Mola amps, I did not feel they sounded very musical in my system and environment. Mar 21, 2023 · Hybrid class D offer higher output and better efficiency. The class d is 300 watts. I did a lot of reading about them before finally buying one (a used Wyred4Sound ST-500 built around an ICEPower core) to use w/my ATC SCM12 Pros. Sep 30, 2019 · The class a amps were only 50 watts. Apr 8, 2020. Feb 11, 2022 · Class AB, is obviously, all over the place. At full power out, they might approach comparable efficiency, but at less than full output power (where the class AB drops most of the supply voltage across its output transistors at the total current it has to feed to the load), a decent class D Sep 30, 2019 · Actually it is the exact opposite. Smooth detailed. The 700AS2 costs a lot less than the Hypex and Purifi kits. 5k was ‘reasonable’! Keith. To be more precise, why are the class A/AB amplifiers the only one considered as an "audiophile" choice of amplification when they measure worse compared to the nowadays class D (hypex, ICEpower) amplifiers in both S/N ratio, THD, and power. Dec 10, 2021 · Personally I would go the Hypex route but agree with many of the comments already in that the class is less important now than the implementation. It was sent to me by the company and costs US $2,295. They all sound good on their own way but there is a contrast difference. Look at the I Nuke series. Class A designs can be push-pull as long as both output devices conduct current during the entire sine wave cycle. But it is a good bargain we can get, if we are buying the right type of a vintage amplifier, Like these Technics Class AA or probably Denons Optical Class A amps. I'm hoping to do a comparison on Class D based amplifiers soon, including: Tripath, Gainclone (LM3886), ICEPower, Class D Audio, BYOB, and a few others. Dec 15, 2020 · It is true that many of the first transistorized amps were single-ended, but that's mostly because the PNP devices of the time truly sucked. Dec 10, 2021. 47. The 700AS2 sounds a lot more intrusive and cluttered than its competitors. In this article, we’ll dive into the intricacies of these technologies, exploring their sound quality characteristics and helping you decide which Audiophile class Jan 24, 2022 · Although not using a switcher, or level matching - I did a purely subjective long term series of tests comparing a very similar Onkyo Class AB AVR (a somewhat more heavy duty upper end model rated at 140w/ch) - to the class D Crown XLS2500, and the current dumping (feed forward) Quad 606 / 707. Dec 1, 2015 · Yes, compared Class A, Class A/B , Class D ( three different modules) , PSE, SET ,P/P hybrid valve input and SS output. Apr 1, 2009 · "The efficiency of these amplifiers is supposedly similar to Hypex. Class D are much more efficient, so more bang for your buck. Class D designs have a smaller bandwidth than many AB amps - this explains many apparently crappy 10Khz square waves. The area where I find a lot of class D amps failing is in sustained power. Until Hypex NCore changed the game, Class D amplification was about compactness and electrical efficiency – but Hypex NCore also offers obvious superiority where clarity, resolution and outright musicality are concerned. ”. But don’t expect Hypex or Purifi quality. , Example: Hypex NC400 DIY Amp (not sure if I'm allowed to post links here). Member. Buying a serious amp for 849 Euros is a good deal. Sep 30, 2019 · The only Hypex product I've tested so far is the PSC2. 1. Feb 5, 2023 · The small one is the one I usually use, via computer. Chicago. And it is decibel, 1/10 of a Bel, dB not DB. I have a budget of a thousand Euro's. SInce we like data here, I made the calculation for you: considering nCore has a first order low pass behavior with -3dB @ 50 kHz, this gives a phase of -22º @ 20 kHz. ATI hypex series for example. Nov 1, 2022 · Hi there everyone. Dec 10, 2021 · Distinguished Member. 9. Similarly, Class AB outputs can be push-pull or single-ended. At this point I’m wondering if I should still stick to Hypex amps Jan 11, 2021 · Jan 11, 2021. If you want quality components in it with long lasting support and warranty then it's not cheaper than good A-B class one at all. I'm just a bit confused about the sound quality between all the various models. Yes but not so much heat like a pure class A, but a lot more than an SM-amp. It costs US $1149 as of this writing. I have Icepower as1200 and it's quite hot to the touch, much more than the Nc400 I had before. Oct 3, 2021 · My Adcom 565 run about 10 watts class A before going to AB. May 12, 2020 · While equipment, life, and living spaces can of course change in the future, long story short is that I'm confident that the power rating of the 400/500 Hypex and Purifi modules (and equivalent Class AB designs) is more than enough for my needs - and I'm happy to pay the small price premium for a Hypex 500-based amp over a 250-based amp even Sep 30, 2019 · It replaced the class a tube and ss amps that I have. However, to the end user the operating class is pretty much irrelevant. I like the fact the AHB2 uses switching power supply (“Hi-Fi” consumers would probably demand a LPS in every component they own). Nov 6, 2016 · Sunfire is a Class G amplifier (Tracking Downconverter - ie continuously variable rail voltage, unlike Class H which has a fixed number of different rail voltages - most Class H's have 2 different rail voltages, but some have 3 different rail voltages) that uses a Class AB output stage (Toshiba Bipolar Output transistors in push-pull configuration). First, they offer higher power efficiency than traditional Class AB amplifiers, with Class D amplifiers achieving 95% efficiency compared to the typical 60% for Class AB amplifiers. 75" (cm: 40 x 11,75 x 34,9), Weight: 13 lbs / 5,9 kg. I am not an engineer, and don't like to have to worry whether a "250wpc" Hypex Class-D amplifier is as powerful and will have as much headroom as Jan 15, 2021 · You could claim for <0. The implementation can be very good or awkward, regardless operational class of the output stage. Not open for further replies. It’s a big part of what makes Evo such an enjoyable and convincing Jun 15, 2020 · @mr_m, As you requested, I owned the Hypex NCore NC400 Class D Power Amplifier dual-mono blocks (2 NC400's per box) and the Mola-Mola Kaluga NC1200 Class D Power Amplifiers. 12. Dec 18, 2023 · I'm monitoring the reviews of Audio Science Review and more and more class D amps are going at the top of the chart. In a completely separate announcement, Hypex will be launching the Nilai500DIY module, which is specified to deliver 500W with Sep 30, 2019 · Of all tests, this may well be one of the less relevant to SQ, since already the second harmonic is inaudible (unless one believes to be capable of hearing 20Khz). Watch out for specmanship games here. Next. Sep 30, 2019 · I use the nc252mp (in a @March Audio box - p252). Jan 11, 2021. Jan 15, 2022 · The main advantage of Purifi is that it's cooler than the others. Apr 5, 2023 · This is a review and detailed measurements of the Buckeye Hypex NC502MP 8-channel class D amplifier. Apart from that, many Class AB and H PA amps, and lots of Class AB HiFi amps from for example Denon, Parasound, Uher, Sony, Conclusions: Apr 26, 2023 · There are several reasons why you should consider a Class D amplifier like the Hypex NCORE or Purifi Eigentakt offerings for high performance. OP. Price: Starts at 1599 USD direct from Wyred 4 Sound webpage. I can't imagine I'll need more watts than what the NC252MP offers, but would buying one of the more powerful modules bring an overall Apr 26, 2012 · I've ordered an ICEPower 125ASX2 module based amplifier and only have a Class D Audio SDS-224 to compare it to. So there seem to be lots of average ones out there. For over a year I read this forum and ASR and consulted with audioholics’ Matthew Poes before making my change. From 1695 GBP in UK (eliteaudiouk. Hello there, These days I'm a bit bothered with the value of the class A/AB amplifiers. Mar 27, 2016 · 13327 posts · Joined 2010. The class D designs were not bad. It will have a little better SINAD @ 1 KHz than good AB class one but then again AB class one will be cleener in high frequencies. Accompanied by a balanced DAC/preamp (now, probably: SMSL SU-10 Balanced DAC; before: RME ADI-2 Pro). Seeing as the harmonics of a 6 kHz sine is at and beyond 12 kHz, for many of us, this is not that much of a problem. Apr 13, 2020. So the distortion that this switching creates is at an even higher frequency, we cannot hear that! Dec 27, 2018 · The unit came with balanced inputs and speaker outputs and that is how I tested it. Dec 19, 2021 · Full Audioholic. 5x to 2x the amount of rated power compared to a robust class AB amplifier. So I have settled at 45 kHz where we can see the differentiation with class AB designs well. #223. 02% at 1 kHz, 1 to 20 Watts in the amplifier specification, whereas at 6 kHz, the distortion is close to 0. The owner/builder is @Buckeye Amps on our forum. davidr3032. If implemented properly, class A avoids the only issue of a good linear amplifier - crossover distortion. Oct 8, 2020 · Each option he chose is an amplifier with a D/A converter. Bel Canto's proprietary, balanced, discrete current-to-voltage stage, followed by a thermally stable, high-current, class-A output that uses naked Z-foil resistors for voltage conversion and, for the analog filter Aug 24, 2018 · Class D amps remain controversial in high-end circles. I've heard plenty of other Class D amps like Lab Gruppen FP or IPD series, Nexo NxAmp, Powersofts, Synq, Crown. I’d be interested in any more comparisons you have done. Following the announcement of the new and improved NCOREx Class-D amplifier technology, Hypex has also reserved a surprise for this year's High End Show in Munich. 1dB increments. They're based on Hypex N-core modules. Jul 6, 2020. Likes. I have some Tripath Class D’s I’m comparing to the Quads, so far I find them very similar. So put it in a cabinet and forget about it. IMO it is less forgiving of poor design and implementation than typical class A, AB, or related Jan 30, 2022 · Buckeye 6 Channel Amplifier Review. rl rm wu ab ho pm tu pw ii vl