Here is a very interesting comment from the DIY Audio site by Jan Didden, a well known designer:
"Just went to an AES presentation yesterday by Bruno on the ncore technology. I thought I knew a thing or two about analog design, but suffice it to say that I learned another couple of tricks.
When reviewing the measurements on the 1200 I can confirm the fantastic specs like the mentioned 0.003% at all powers and all frequencies. Can you believe an output impedance of around 1milliohms, and that from DC to above 20kHz??
What jumps out immediately is that this amp doesn't have the rise in THD, rise in Zout and fall in PSRR that a 'regular' amp would show above a few kHz at best. In this amp, all these specs are flat to above 20kHz, which is a result from having an open loop gain that also extends above 20kHz.
There are more paradigm shifts: the 5kHz THD is LOWER than the 1kHz THD, for instance. Which is great as it does lower the higher harmonics even further.
Bruno confidently maintains that this kind of performance is not offered by ANY amp on the market today, not even class A.
But, the proof is in the eating of course so the 2nd part of the presentation was a listening test with Bruno's LS1 active speakers driven by ncore modules. Not a scientifically controlled listening test, but most of those present make their living by listening and judging music and they were impressed, as was I. Some people said they recognised the acoustics of the studio where some of the tracks were produced..."
