This process has improved the original acoustic sound expression that can be found in the sound strength and the data amount. In addition, the AKEQ corresponds to the high-resolution sound sources, accepting a More detailed information and listening demonstration will be available. The AKEQ adopts this process, improving low frequency noise performance and electric margin. A harmonic sound filter was newly added to the existing five filters found in our previous generation device.
An industry first, a The digital input supports up to kHz PCM and Asahi Kasei Microdevices Corporation AKM is a Japan-based company designs and manufactures CMOS mixed signal integrated circuits and magnetic sensors for applications including audio, multimedia, consumer electronics, industrial infrastructure, and telecommunications. AKM has continued to provide customers with optimum solutions all over the world for over 30 years.
AKM Semiconductor, Inc. Additional information is available at www. Full Size. Features 1. Supporting High Resolution Data An industry first, a About AKM Asahi Kasei Microdevices Corporation AKM is a Japan-based company designs and manufactures CMOS mixed signal integrated circuits and magnetic sensors for applications including audio, multimedia, consumer electronics, industrial infrastructure, and telecommunications.
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The other issue being that these chips aren't on many DACs but am confident that they will follow soon. What do you guys think? I prefer it to the Sabre32 variants. Dac is not just only the chip The IV stage or output portion also makes alot of difference.
The difference in sound is big all sound like different Dacs. So final sound still depends a lot on the final implementation.
Quote from: BTW on December 14, Fully agree. My new reference DAC I belong to the ESS Pro camp Ayre QX-5 Stunningly transparent and resolving!! Not a techie but I have a discrete pcm chip dac later upgraded to a r2r ladder and found it much better. That was implemented in a lampizator dac where I upgraded the chip to amr2r ladder. Found playback performance almost on par with dsd playback. Fully agree each chip manufacturer has a house sound but final result can be quite different depending on power supply design and IV stages etc.
So IMHO always listen to final result. Quote from: Doggie Howser on December 14, Bro BTW, can a dac be designed such that the analogue output stages stayed powered on while the digital section can be powered down for refreshing purpose?
I haven't brought it home to compare with your shigaclone yet Many thanks to the mods for continuing to tolerate all my expressive vulgarisms and harassment of fellow forumers That a number of them subscribe to the NOS non over-sampling philosophy may contribute to that sound quality.
Quote from: Audio on December 14, Quote from: lkypeter on December 14, Quote from: Audio on December 15, SMF 2. SimplePortal 2. Absolutely, and you forgot something - ultra low noise localised shunt regulation is almost imperative for such intensive DSP chips. If you are sticking to generic LM or LT kind of basic regulations, you will not realise the full potential of such hiend chips.
That may be the case - but there's still a house sound for each manufacturer. Quote from: Doggie Howser on December 14,That may be the case - but there's still a house sound for each manufacturer.In our opinion, ESS is now two steps ahead of the competition! We have conducted numerous measurements and listening tests, and I have to say that we are very impressed! Both are now in full production.
These products began shipping November 14, Clearly the overall architecture is similar, but there are four significant performance improvements that have been added to the ESPRO :. Of these, we consider the THD compensation the most clever and unique feature. The improved phase locked loop allows virtually instantaneous switching between digital inputs. It can also be adjusted to compensate for the off-chip analog components in the DAC. The result is a conversion system that is virtually perfect in terms of 2nd and 3rd harmonic distortion!
Our tests show a reduction in 2nd harmonic distortion over the entire audio band, with the largest improvements in the midrange where our ears have their highest sensitivity. In the midrange, the compensation circuit reduces the 2nd harmonic distortion by 8 to 12 dB. The performance of the 2nd harmonic compensation system is demonstrated in the plot below. We have chosen the filter which provides the lowest passband ripple.
This new filter exceeds the pass-band performance of the best filter available in the older ES It is important to note that the DAC2 and DAC3 converters frequency-shift the selected built-in filter by driving the converter chip at a fixed kHz sample rate.
This frequency shifting places the near-Nyquist region entirely above the audio band. The Benchmark upsampling system completely eliminates the time-domain errors that would have been produced by the built-in filter. The kHz upsampling frequency sets the cutoff frequency of the internal filter at kHz. The new chip can lock with high precision in less than 6 milliseconds.
For all practical purposes, this is instantaneous. Remarkably, the phase of the DAC3 is completely settled at the end of the very short 6 ms mute interval. Please note the time scales when comparing the plots. In each case the time scale is adjusted to show the complete mute interval. The red lines show the approximate envelopes of the mute functions.
In contrast, the DAC3 provides seamless 6 ms switching between inputs and it exhibits none of the frequency shifting that occurs when the DAC1 is settling.
With the DAC3it is now possible to make accurate comparisons between two digital sources. The performance and complexity of the support circuitry outside of the ESPRO can be configured to match a manufacturer's budget and space constraints. When Benchmark designed the DAC2 we started by using all of the ESS-recommended performance options and then we added our own set of enhancements. This same strategy is carried forward to the DAC3.
Our performance-driven strategy greatly increases the number of support components, but these components add important performance improvements. For this reason, it is important to understand that there can be a wide variation in the performance of an ESPRO converter solution. The overall performance will be determined by the manufacturer's budget, goals, and skills.
Intersample Overs - Application Notes. Benchmark DAC2 vs. ESPRO product page.Please login or register. Quote from: AndrewC on December 18, Quote from: bean on December 18, Apologies for the OT discussion Quote from: nfnc on December 18, Quote from: nfnc on December 18, You'll never get to heaven with a smile on your face from me.
More due to the rarefied air, perhaps While such moves do distinguish the makers from the rest who use off the shelf parts, whether these are really better or just different remains to be seen.
akm4497 vs. ess9038pro
As one manufacturer once said to me, regardless of the DAC chip, his house sound depends on how the output is used and the methods chosen. So, the house sound will be there whatever chip is used.
Lower cost does not mean lower quality. The algorithms is mostly cast in stone as these chips are non-programmable but some do allow a choice of filters. In chip manufacturing, if the same mold can be used for thousands of times, the cost is lower. In fact, they normally have a lower yield factor and shorter MTBF. For mass produced chips implementation, the manufacturers ESS, AKM has a sample blue print on how to use the chip making circuit design less onerous mistake free.
On the reverse, the circuit design for FPGAs are mostly bespoke and could mean more error than trial if you catch the joke. What do you guys think? Quote from: lkypeter on December 19, I must have confuse FPGA custom with short runs. Apologies forumers Pete Quote from: AndrewC on December 19, Quote from: Boxerfan88 on December 19, Bro i think you are referring to asic.
FPGA- field programmable are generic micro computer that can be programmed to any algorithm. ASic can be burned to only one algorithm and is dirt cheap if you run volumes of k, unachievable in audio. I feel this thread should be discussed as : is Chord's algorithn superior to ess and the others? Quote from: nfnc on December 19, SMF 2. SimplePortal 2. FPGA stands for field programmable gate array: Field programmable - allow the user to program the chip.
In this case, it is one-time programmable. That is, someone buy the fpga chip, and then program the digital logic e. DAC is a analog design. FPGA is a digital design. Hence, the DAC chip used is still relevant, but maybe less so.
They would not have gone for the Morion crystal otherwise. In the various interviews, there was this emphasis about relationships and about the vendors being willing to "customise" or fulfil what was requested of them. And thats putting it mildly. Logged You'll never get to heaven with a smile on your face from me.I like that price, a lot! Have you used it, Charly? If so, what's been your experience with it?
I used that box extensively when in a recent audio testing role.
AKM Releases AK4493, Upgrade to the AK4490, the Best Selling Premium High-End DAC
My listening, however, was exclusively through headphones. The audio quality, both perceived and measured, was far better than what was delivered through my Dell laptop. I'm sure that this chip is in everything from cheap sound cards to some scary pricey stuff. Unfortunately, the chip, while important, does not have as much to do with the sound as one might expect. The circuit design and the care in which it is implemented is more important. Thus there are wonderfully sounding units with 10 year old chip designs and with the latest chips.
Behringer is good at incorporating the latest chips in their products. I bet they have some stuff out with this chip. Yet I have yet to hear a Behringer product that sounds decent. Their equipment generally sounds brittle and harsh.
Additionally, their digital based designs often have digital overflow problems, etc. This is similar to class D amps. The modules are cheap. The DIY amps I have heard are pretty awful - but the builders are happy. There are probably some great DIYs out there also. What he said. This seems to be a very popular trap to fall into for newbies and know-it-alls alike. Saying "I like the sound of this DAC chip" is like driving a Ferrari and saying "I like the way that engine management chip drives".
Sure a car designer or test driver may have so much experience that they can mentally eliminate all the other variables in a package as complex as a sports car to make the observation a meaningful one.
Similarly, DAC designers or very experienced listeners with a huge experience of listening to lots of systems under controlled conditions like some of the writers at 'phile' just might be able to do the same. Of course DAC marketeers are anxious to provide spurious technological arguments to support a notion that, say, a DAC chip can be a 'miracle' component that guarantees instant sonic nirvana.
It's their job after all! The interesting thing is the way consumers seem happy to buy in to the conceit, maybe to try to prove that they are part of the cognoscenti that hears and appreciates the difference. My advice? Trust your ears and leave the alchemy to the alchemists. If you need religion, a spiritual god may offer more long-term satisfaction than a microelectronic one! Just for fun I thought I would look up the best-sounding digital systems I have personally heard and see if there was any correlation in the DAC technology used.
In no particular order:. As you can see, I am clearly a Burr-Brown man. In fact this proves beyond all statistical doubt that B-B rocks and all the others suck. My Squeezebox 3 has Burr-Brown chip I don't know what modelbut I think it sounds decent on its own. I'd tried it using Cambridge Audio C, which uses AD, and it sounded better, but kind of too digital-sounding for me.
And JA's measurements for the Transporter came out showing an immaculate performanceFree Shipping on All Orders! Contact Account Shopping Cart. August in Going Digital. I have the musical paradise mp-d2 mkI with akm and love the sound, here's my question. I plan on getting the mkIII when it comes out, the mkIII can use akm,akm, or esspro, gary the designer prefers the esspro and says it sounds the best, i'm thinking that if i love the sound of the then i should love the August Matter of taste Marv.
One dedicated to just 2ch. It is just a beast! SCompRacer Posts: 7, What input would you be using on the DAC? The house sound depends on output implemented. Make yourself necessary to someone. They did not rely entirely on the embedded clock. You'd have to read the white paper for specifics. USB input is more a level playing field with your choices. I'd push for specifics as to why he claims the ESS sounds better. We go back to that one mans detail is another mans brightness thing. Clipdat Posts: 7, That's a nice DAC for the money.
Thread starter Sonic Guild Start date Mar 2, Post 1 of Joined May 11, Messages Reaction score Joined May 11, Posts Likes Any comparison between the? Mar 2, Post 2 of Joined Apr 10, Messages Reaction score Joined Apr 10, Posts Likes Sounds really good. If you are tinkerer than you can tweak it to your hearts intend. Post 3 of Share This Post. Post 4 of Joined Jul 5, Messages Reaction score