The Hypex UCD or Ncore range is most EMI/RFI immune class D amp range there is on this earth........ You must be a bloody idiot to get problems in this department......
well, I don't know. Regnad confirmed a not exactly minor sonic difference. who knows? I certainly don't think that "high end cables" (what exactly does that mean and what is the measure of highend-ness?) can be responsible of "huge" differences (again, direct experience proved that one man's huge is another's not discernible) but vibration control and good shielding, maybe.Very small portion?
Good shielding is always a good thing but vibration????
If it is a tube amp, I am in.......
The Hypex UCD or Ncore range is most EMI/RFI immune class D amp range there is on this earth........ You must be a bloody idiot to get problems in this department......
There are always room for improvements. Minor changes can lead to big differences. And somehow EMI shielding is the most under-rated consideration in the audio industry.
Due to my work, I am able to access many professional graded equipments (EMI treatment, shielding, vibration control etc) designed for lab R&D, hospital, and military. These stuffs are not meant for used on audio equipments, but they do work very well; it is just that the prices are not justified for the audio listening purpose.
Have you tried to add a power regenerator before the nCore VS plugged it in directly to a wall outlet? or a Shunt regulated power supply on nCore? i know that defeats the purpose for Class D, but you will be amazed by the improvements.
I'm guilty of liking to mock people when they're really asking for it but this is at least partially a scientific board. I'm also skeptical but who knows? why not try to refute the possibility by testing instead of mockery? and also accept that one can be wrong. I'm absolutely sure the influence of vibration can be measured.
this definitely doesn't mean that we need to believe something just because X said so but if there's enough empirical data to deem a phenomenon worth investigating, why not?
You are just nailing it: empirical data......
But vibrations in a solid state amp I don't believe in as a former sound engineer. Done a lot of testing with high power rigs ( 100kw and up), we had to change the source ( cd player) to Dat because the sound level made it skip. Did not notice any problem with the rest of the gear......
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I'm just sharing my findings so far. I hope they can be useful to someone else on the forum.
Regarding the vibration control, I did some testings, but most of the so called hifi solutions are for fun only. If you are serious, give this a try:
Vibration Isolation Isolators, Tables, Platforms & Systems | Minusk Technology
Even the cheap models will work very well. Tested on solid amps before, and it worked. However, it made more differences on the DAC than on the Amps - I still cannot figure out the reason behind it.
Again, all the equipments/technologies that I tested on my nCore monoblocks are not commonly available to the public, so my findings might be irrelevant.
Regarding the vibration control, I did some testings, but most of the so called hifi solutions are for fun only. If you are serious, give this a try:
Vibration Isolation Isolators, Tables, Platforms & Systems | Minusk Technology
Even the cheap models will work very well. Tested on solid amps before, and it worked. However, it made more differences on the DAC than on the Amps - I still cannot figure out the reason behind it.
Again, all the equipments/technologies that I tested on my nCore monoblocks are not commonly available to the public, so my findings might be irrelevant.
You are not a GOOD audiophile believer.
Solid state electronic is very sensitive to vibrations and need special cones/feets build from solid unoptainium. Even if you cannot record any noise from its output, while trying to destroy-it with a hammer.
I think Bruno made a "small" practical joke with the NC1200 and NC400......
The NC1200 has a standard stock input which can be bypassed so the manufacturer can "voice" his amp. The NC400 has an input stage completely designed by Bruno the way he likes it. So the joke is: who can design a better input stage!
It is just a contest....
If the point is that all attempts thus far have proven successful in doing so, I don´t get the joke -at least on Bruno´s part
Do we have any indications that the mentioned nc1200 implementations in fact have bypassed the input buffer?
I looked at the web page and the spec sheets of those products seem to isolate up to few tens of Hz's. I'm not sure that's of any help in audio.
if I recall correctly, tests done by Ed Meitner of EMM Labs showed that vibrations from loadspeakers do indeed cause jitter in quartz oscillators (there was a mention that one could clearly distinguish the spoken words in the song when listening to the recorded jitter data). maybe those expensive products render an audible result but I'd choose a product especially designed for audio (or even DIY, many do).
It...
Is a well known fact that the two available nC1200 amplifiers (Merrill and Atsah) both use the stock input buffers on the nC1200 modules.
It will be more interesting when someone decides to pair the nC1200 modules with a different input buffer, as is the case with some of the regular Hypex amp modules.
If the point is that all attempts thus far have proven successful in doing so, I don´t get the joke -at least on Bruno´s part
Do we have any indications that the mentioned nc1200 implementations in fact have bypassed the input buffer?
Is a well known fact that the two available nC1200 amplifiers (Merrill and Atsah) both use the stock input buffers on the nC1200 modules.
It will be more interesting when someone decides to pair the nC1200 modules with a different input buffer, as is the case with some of the regular Hypex amp modules.
I believe that both ncore 1200 commercial products mentioned above (Veritas and Astah) use the stock input section with fancy cases, wire, connectors, etc., differentiating them.
I emailed Hypex and asked if the nc1200 should inherently sound better than the nc400 and they answered no. In fact, the nc400 has better specs than the nc1200...There would seem to be no reason for the 1200 to perform any better than the 400, in general.
I guess if I paid $9000-$10,000 for something, I would want it to sound better than the $2000 version too....
There are several people on audiocirclejerks who have the nc1200 commercial product and claim it is superior to the nc400 but they turned out to be beta testers who were making comments without divulging their sweetheart deals so I take their opinions with a grain of salt.
I emailed Hypex and asked if the nc1200 should inherently sound better than the nc400 and they answered no. In fact, the nc400 has better specs than the nc1200...There would seem to be no reason for the 1200 to perform any better than the 400, in general.
I guess if I paid $9000-$10,000 for something, I would want it to sound better than the $2000 version too....
There are several people on audiocirclejerks who have the nc1200 commercial product and claim it is superior to the nc400 but they turned out to be beta testers who were making comments without divulging their sweetheart deals so I take their opinions with a grain of salt.
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Hello UA100k,
Thanks for your response and the added pictures. I can see that the back of the Merrill unit does indeed look much better layed out with higher quality speaker binding posts and XLR connection Input then the other offerings I have seen thus far.
I would still love to see some pics of guts of the unit but if that request would compromise any secrets used in its creation then I understand the hesitance to show that layout in all its glory. At least the product description mentions that some effort and material was expended to better isolate the various components from each other during the design/build phase of the amp.
Based solely on what I have seen in print and pictures and read from current owners, I give the Merrill Veritas a "Gold Star" over the competition at the moment; even if the IEC connector doesn't look to made of gold taken straight from an Egyptian Pharaohs lost stash.
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