Class D Technology


So I get the obvious strengths of Class D. Efficiency, power output & running cool which allows for small form factors. I also understand the weaknesses somewhat. 1. Non-linear & lots of distortion that needs to be cleaned up with an output filter. 
So my question is, if it weren't for efficiency & power, would there be any reason to own a Class D amp? Do they beat Class A in any other categories that count for sound quality?  
seanheis1

Showing 3 responses by orpheus10


I'm very curious about Class "D" amps. No I've never heard one. How does Class "D" compare to SS? I'm a tube guy who has not heard the very best SS amps, but I did hear an ARC SS that I didn't like.

If a person prefers SS to tubes in general, his opinion is less valid to me, than someone who prefers Class "D" over tubes or claims that he can't tell the difference.

I've been told that for watts of power, class "D" is cheaper; that's nice, but I don't have a serious power problem, just curious.

My tubes have a black background; I know this is not supposed to be so, but current tube equipment has achieved that. Maybe not as Black as Class "D", and yes, there are levels of Blackness.

While the quickest way to find the answer to these questions is to buy one; that is not an option. I hope I've arranged my questions in an order that won't offend anyone, but will get an answer to the best of their ability in regard to Class "D"

I will try Class "D" when it get's as common as "bacon and eggs". In the meantime I will maintain my staunch prejudice against Class "D".

Did you know that the vast majority of people who hate "Black" people have never seen one up close and personal. If that can be accepted, I'm sure my stance on Class "D" amps can be accepted; in both cases there is no logical or rational reason for such a stance.

But seriously, I have already "verified" that computer sonics, and analog sonics, are impossible to tell apart, if the computer is done right; evidently it depends on the level of switching; but there are many indistinguishable differences that "audiophiles" claim to hear; such as six 9's copper; 99.9999% pure.

While there is a difference in the quality of interconnects, and it is due to the composition of the wire, the composite of silver plus copper for example, but that also has a scientific variable in ohms. When so many minute differences are carried to such great extremes, accompanied by extreme prices; without any scientific merit, I for one am quite dubious, as in the case of interconnects. I strongly suspect that almost any difference is interpreted as better; how else could you explain a 1K price for a 6 foot piece of copper wire?

Some of these differences are at a "subconscious" level; tube, and solid state for example. I think SS is best for rock, and tube best for "smooth sounds and female vocals"; but I am speaking of a tube pre and SS amp, where the difference is even smaller; when both are SS, then it's audibly obvious.

There are many dubious things on this forum, that I "strongly" suspect are no more than opinion, but "placebos" are good for one's mental health; that is, if the health of one's bank account can accommodate this feel good luxury.

I suspect I have become an "Audiophile"; it snuck upon me when I wasn't looking.  



Dave, I think it done snuck up on you too.

The cable I use to make my own, was once sold by Belden in 100 ft rolls to radio and TV stations; that lets you know it's some good stuff; they both demand the highest quality at the cheapest price. Belden no longer sells that cable to the masses. I asked for some replacement cable, and if it was food, the dogs wouldn't eat it.

Fortunately, I'm working on my last major improvement, and thanks to your excellent ideas, I know it's going to be a success.