ricevs,
A few of us here on Audiogon, myself included, have crossed paths with georgehifi and some of his dubious statements/theories about the current state of good class D amps utilizing MOSFET transistors.
I understand your frustration since I also understand, based on using multiple good class D amps in my system for several years, that I completely fail to detect any of the sonic shortcomings that georgehifi claims exist on my amps due to traditional FET transistors, the switching frequency being too low and the filter used to remove this switching frequency being of poor quality.
Now, I just picture him walking aimlessly around an Australian city in a bathrobe and slippers, having just walked out of some institution attempting to treat his rare condition, continuously mumbling to himself phrases such as " switching frequencies too low!" and "better output filters needed!". Occasionally, he stumbles upon an internet cafe and places posts on Audiogon.
As I see it, however, the truth is that these new fast GaN FETs do have the potential to even further advance class D performance. Perhaps higher switching carrier frequencies will be beneficial, too. I think it's important to keep an open mind.
Overall, I'm suggesting it may be best to just cut georgehifi some slack. While he may be clueless on how good current class D amps with traditional FETs have become, he oddly seems to have some good ideas on how to potentially make them even better.
Love,
Tim
A few of us here on Audiogon, myself included, have crossed paths with georgehifi and some of his dubious statements/theories about the current state of good class D amps utilizing MOSFET transistors.
I understand your frustration since I also understand, based on using multiple good class D amps in my system for several years, that I completely fail to detect any of the sonic shortcomings that georgehifi claims exist on my amps due to traditional FET transistors, the switching frequency being too low and the filter used to remove this switching frequency being of poor quality.
Now, I just picture him walking aimlessly around an Australian city in a bathrobe and slippers, having just walked out of some institution attempting to treat his rare condition, continuously mumbling to himself phrases such as " switching frequencies too low!" and "better output filters needed!". Occasionally, he stumbles upon an internet cafe and places posts on Audiogon.
As I see it, however, the truth is that these new fast GaN FETs do have the potential to even further advance class D performance. Perhaps higher switching carrier frequencies will be beneficial, too. I think it's important to keep an open mind.
Overall, I'm suggesting it may be best to just cut georgehifi some slack. While he may be clueless on how good current class D amps with traditional FETs have become, he oddly seems to have some good ideas on how to potentially make them even better.
Love,
Tim