monstertruck9882,
Sorry, I confused you with another poster that had a class D amp with a hum. My mistake.
FYI: Erik was referring to georgehifi, an Australian guy who invariably posts on class D threads claiming that the switching signal carrier frequency is currently too low on class D amps, causing problems in the audible treble frequencies, and that the filters, that remove the typical 400-600 KHz switching signal carrier frequency from the signal prior to output to the speakers, are not of sufficient quality and also cause problems in the audible frequency range.
It's funny, and a bit odd and sad, because apparently only he and a few members of his cult are able to hear these supposed problems in the audible range on class D amps. The overwhelming majority of class D owners and listeners hear none of these claimed sonic issues which, by definition and for all practical purposes, means that these supposed class D issues don't exist for them and believe georgehifi and his sycophants are just bat turd crazy.
Of course, it's highly unlikely but remotely possible that only certain individuals are sensitive to these class D sonic issues and capable of perceiving them. But thus far, there's absolutely no scientific evidence that either these class D sonic issues actually exist or that that only a small minority of individuals are capable of even perceiving them if they do exist. In my opinion, having an ulterior motive or being bat turd crazy are much more likely explanations.
Tim
Sorry, I confused you with another poster that had a class D amp with a hum. My mistake.
FYI: Erik was referring to georgehifi, an Australian guy who invariably posts on class D threads claiming that the switching signal carrier frequency is currently too low on class D amps, causing problems in the audible treble frequencies, and that the filters, that remove the typical 400-600 KHz switching signal carrier frequency from the signal prior to output to the speakers, are not of sufficient quality and also cause problems in the audible frequency range.
It's funny, and a bit odd and sad, because apparently only he and a few members of his cult are able to hear these supposed problems in the audible range on class D amps. The overwhelming majority of class D owners and listeners hear none of these claimed sonic issues which, by definition and for all practical purposes, means that these supposed class D issues don't exist for them and believe georgehifi and his sycophants are just bat turd crazy.
Of course, it's highly unlikely but remotely possible that only certain individuals are sensitive to these class D sonic issues and capable of perceiving them. But thus far, there's absolutely no scientific evidence that either these class D sonic issues actually exist or that that only a small minority of individuals are capable of even perceiving them if they do exist. In my opinion, having an ulterior motive or being bat turd crazy are much more likely explanations.
Tim