Apollon AS1200 ICEPOWER class D amp in da house

Hello monstertruck9882,

     You've discovered the impressive world of modern class D amps.  In my opinion, the least expensive method to attain true high-end sound quality.  There are currently numerous very good quality class D amps available at very reasonable prices and it seems like the Appollon AS1200 is yet another fine example. Congratulations!
     I use a pair of D-Sonic M3-600-M class D mono-block amps to drive a pair of Magnepan 3.7i speakers and I'm also very pleased with the results.  From my experience having used 2 different class D stereo amps and now the monos, I've notice they all have had the same general sound quality characteristics as you describe with yours; a very low noise floor (I believe your hum is not normal), very low distortion, highly accurate,  detailed, dynamic and overall a sound very much like the audio ideal of the amp being just a 'straight wire with gain'.  In other words, the signal outputted is the same as the signal inputted, just with signal gain applied evenly across the audio spectrum that results in a very neutral overall presentation.

Enjoy,
 Tim

Thanks @noble100. I like the amp for sure. My previous amps were tube based. Some were outstanding. This thing though. The control. The transparency. It just gets things done. 

Not sure what hum you are referring to. My amp does not hum.

ASR kind of sucks except for their measurements.

I am using ICEpower amps in my HT again. They used to be my main amps. I agree that they sound like nothing at all.  The size and temperature are big selling points too!

Wait for a troll to show up and explain to you how there are problems you can't hear which can be measured which prove you can't be happy. He'll be here in a bit. Just smile and keep enjoying the music!

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

FYI, georgehifi, makes negative comments about many things, including horn speakers, and amplifiers with mosfet output stages, two things I enjoy. I still like the guy, and cannot imagine these threads without him. 

Hello mrdecibel,

     Georgehifi is predictable and a pest, but I still like him, too.