new GAN amplifier

Like the Halcro Eclipse with its incredible specs ; 110kg/250 pounds, 135,000$

We had a friend that knew Bruce Candy and had the DM88 monoblocks, he used them with Wilson 6, 7 and 8’s, they were "nice and transparent" and could go loud, but a bit ho-hum, kinda boring, no life to the music, nothing that grabbed your attention and or emotions.

Cheers George

@georgehifi  not much going on over there recently is there?

No it’s quite, but at least there not too much voodoo there like here, lots of snake oil peddlers here, a bit of undercover shilling going on for small manufacturers, their threads can eventually get removed or closed.

Cheers George

Admittedly most MOSFETs designed today are designed for pulse operation and the long pulse/DC rating of those MOSFETs is less than the rated current. That is a thermal derating though due to rapid heating of the usually quite small die. You can see that on the data sheet if it has a thermal response graph. MOSFETs designed for operation in the linear region (market that seems to be getting smaller) have larger die. This is different from the secondary breakdown of BJTs cause by current concentrating in a small area causing thermal runaway.

When did you last look at a MOSFET SoA plot? Its true that going back 30 years or more they generally didn't have secondary breakdown issues but these days its rare to find an SoA plot which is purely thermally limited.

Like the Halcro Eclipse  with its incredible specs; 110kg/250 pounds, 135,000

In line with laws of diminishing returns, but it is the best if you think least distortion = best. Distortion @ 100W into 4 ohms is on par with small signal performance of the best op-amps.

If / when Halcro goes class D for their flagship amplifier, only then can it be said that class D is as good or better than AB.