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"live sound" listening has a proper reference - reality. Thats why one would spot "faults" immediately if one attends live performed music often. I bet what you hear is not an imperfection in the amp but in the rest of your system.
String sounds lovely in my system with nC400.
Do you think Bruno would stop making amps just because he made a really transparent one? This is his work - he makes amps. He would stop after nC400? Dont think so.
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String sounds lovely in my system with nC400.
Do you think Bruno would stop making amps just because he made a really transparent one? This is his work - he makes amps. He would stop after nC400? Dont think so.
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I don't care much for comparative listening "tests".
My listening experience is almost half a century of visiting live concerts on a very regular basis; that gives my a very solid reference.
Listening to loudspeakers, amplifiers, and so on, over time the differences become apparent, sometimes soon, sometimes over a more extended period.
You should check his AES lecture, where he describes hysteresis distortion to be responsible for the "cloudiness" of treble response of Ncore (that concurs with my experience). Something not to be "corrected" by feedback, so not clearly "visible" in distortion figures. Based on figures, yes Ncores are as good as the best A/B amps.
I think that they are so good that if you are not satisfied with the sound in your system with them in the signal path, the problem lies elsewhere. And when you fixed all those other problems, you wont need or want any other amp. Really.
This is my sincere understanding. And I'm living after it i.e. chasing those other faults every day
(that would be; DAC, speakers and room)//
Ah.
I suggest you check the research (there are several AES papers about it) on the shortcomings of auditive memory.
Those two things are not correlated. Even if something isn't corrected by feedback, it is still measurable.
Ah.
I suggest you check the research (there are several AES papers about it) on the shortcomings of auditive memory.
That's why my half century experience helps me a lot...
It is measurable (once more: check Bruno's lecture...), but feedback does not seem able to correct it (again check Bruno's lecture...). Bruno's uses higher quality (low hysteresis loss) output coils in these Purifi amps.
But what the heck (also to you TNT): when you are satisfied with Ncore sound what is the point? I am not in the mood to fight subjective opinions....
That's why my half century experience helps me a lot...
The problem is of course that with age, we lose ability to hear high frequencies.
But what you offer is - subjective opinions.
But what you offer is - subjective opinions.
Yes and? What do you have to offer what is not already in the "papers"??
I cant hear the Nc alone - can you? I can testify that I like much the sound of my system in which one component is a nC400. And when I exchange the nC400 with something else I like it less. Thats all.
But then again - I have optimised my system around the nC400 - meaning that while using them, I have done alteration to the rest of the system to meet my goals. So I have bet on this horse - bet on the wrong one and you might not get to far... but most seems not to have a system thinking and a strategy how to bild a system - just random choice of products after reading to much on internet.
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Haha....how many AES papers by audio engineers do you want based on their subjective opinions?
Haha....how many AES papers by audio engineers do you want based on their subjective opinions?
None. I want them based on verified, peer-reviewed evidence.
Yes I apparently can, or maybe better, I perceive the sound of Ncore to be a bit fatiguing when listening long term.
I had a Nord amp in my system for weeks, and aluminum dome tweeters (Kef UniQ) at that time.
Listening all day, it introduced some listening fatigue, which I did not perceive when reconnecting, by all means
, this one:Maybe with a softdome tweeter it might have been better.
By the way, that Yamaha A/B amp is ridiculously good, also not expensive when still for sale.
It has efficiency at least on par with Ncore amps, maybe even better.
Attachments
Same here. Studied composition, conducted. Lots of live listening.
Such as? Because I find no flaw. Yes, the gobs of second harmonic of a DHT make the strings more euphoric. Not better. Note that we MAY need that 2nd harmonic distortion paychoacoustically in the context of reproduced music, but this does not make reproduction intrinsically better if it is there - definitely not more correct.
Nope. His words leave no hint that this may be the case. He embarked on a more holistic project that would include also the transducers in the design, and he said he did not expect an audible improvement over the nCore from the Purifi, and he was himself surprised. But he stated also that already with NCore, in his opinion class d already bested any Class AB design sonically. Indeed, his words back the opposite of what you claimed.
Roberto
Nonsense. This is so generic that it is mind boggling that one can claim that with a straight face, sorry.
I think, however, that he started this new venture because he would be doing more than “just” nearly perfect wires with gain. He wanted to tackle where the distortion actually is - speakers.
Of course he needed amps as well to include them in the loop (his amps have a feedback loop from the speaker system, in fact the NCore 500 has that as well) and in order to sell them he HAD to improve measurements - so wider bandwidth, even lower distortion, and a new feedback loop, a second order filtering to the top so you do no longer have that inaudible attenuation at 20Khz, reduced linear phase shift to make maty happy etc etc. New IP will also be leverage in case Hypex claims he used some of their IP - he can force them into an agreement where he shares his new ideas. Business is done this way.
And we gain from increased competition. The only reason I would switch to a new amp at the moment is if I could make it smaller. My Apollon NC500 based moons are essentially perfect as they are, and I trust they are built to last.
Roberto
Why introduce Direct Heated Triodes here? Don't understand...
This is a quote from Jan Didden's review for Audio Xpress of that AES lecture:
Bruno Putzeys kicked off the event with a technical presentation on his new Class-D creation. His NCore amplifiers were touted to be more linear than any other amplifier in any other class, but some recent products challenged that statement, so it was time for a next leap forward. Sporadic reports of a sort of “granularity” in the sound reproduction also prompted an investigation into whether this indeed happens, and if so, what would be the cause. After a long and winding road, Putzeys finally found a culprit: hysteresis in the ferromagnetic material of the amplifier output filter coil.
Apparently I also sense that "granularity"; quite likely many others don't.
Loudspeaker motors also suffer from hysteresis distortion; I guess that amplifier output coil and loudspeaker motor hysteresis distortion is what you mean with the "more holistic project". Bruno worked on the amplifier to improve that, his Danish colleague Lars Risbo worked on the loudspeaker motor.
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