Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other???
The Class-D is just going to be a money spinner for him, he buys the modules does a small mod so it can be said to be better, throws in in a box, and there’s his beer money.@georgehifi Just for the record, this statement of yours from the beginning of this thread is entirely false. Our design is from the ground up entirely our own so we don't use anyone's modules. We have a patent pending on how we eliminate the need for dead time. By eliminating dead time we can use much slower transistors than Gan devices and yet switch at the same speeds. Of course we can use Gan devices too. BTW looking at the heatsinks in the SU-G30 above, that section is the GaN amp, it may have higher than todays 600khz switching because it’s using these heatsinks, as EPC said to me if left at 600khz there is no need for any heat sinking on any of the GaN boards, so it maybe higher. Heatsinks are required, even for Gan devices switching at lower speeds, regardless of what EPC allegedly said. The reason is that all output devices have a finite 'on' resistance which is exactly zero. It might be 0.05 ohms, but its not zero. This means that it will make some heat when full on and that heat builds up over time. |
slimpikins5, I don't think I've degraded to nasty commentary toward georgehifi in my posts. I think he has the right to say anything he wants. After all, this is an audio forum everybody. One member posts a question or statement and the other members respond. Truthfulness and good/accurate info are important, politeness not so much. Ruffling a few feathers is not a big deal, people. Everyone deserves a tune-up every so often. I'm originally from Chicago, and a punch to the face there is just considered a suggestion that you may want to reconsider your position or, perhaps, rephrase it. No big deal and you're always free to punch back as long as you politely say "I beg to differ" immediately beforehand. No moderators required. Erik, Just like you, I'm completely satisfied with my combo ht and music system utilizing all class D amplification. Georgehifi's comments about class D amp shortcomings don't really bother me because I don't hear any of his supposed shortcomings in my class D amps, either. If we don't perceive any of his shortcomings, they don't exist, right? Later, Tim |
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