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
Mid fi has a negative connotation in these parts. That’s all. One can either laugh or be insulted. Best to not use the term unless that is the message intended.

Some amps of any type can be labeled as mid fi compared to others of same type, SS Class D, tube, whatever based on whatever criteria one chooses including the sound quality.

The point is not all of any type are created equal. Some of each type these days compete in the big leagues but play the game differently. Some in the minor leagues.

Also safe to say Class D competes well in all leagues at most any price point these days.

Its generalizing and labeling all products of a particular type equally for better or for worse that causes problems just like labeling all persons of a particular nationality or religion negatively causes similar confusion and problems, just of a lesser importance in the case of hifis.

The BelCanto C5i in particular has shocked me in that my quite tube amp friendly Triangle Titus speakers sound the best ever with it. The 60 w/ch are Ok but not the best with any of my OHM or Dynaudio speakers though I have had visitors from Agon still compliment the sound with those even. Which just goes to show it all depends. Class D amps play the game radically different than OTL tube amps do. But both can deliver big league results (Class D for less perhaps especially when cost of speakers factored in) based on my listening experience perhaps both even with easier load speakers that are required more for the OTL or tube amps but easier load in general tends to benefit all amps to some extent when done right.

Also I would note that modern OHM Walsh speakers (especially the larger models) are a good bit more efficient than Magnepans and not as tube amp unfriendly as one might anticipate. I found Magnepan to need power (though not so much current) to a much greater degree than OHM when I owned both.


Why do the people who say they don't like class D mention the class D amps they have heard?  One guy slammed the H2o's that he had obviously never even heard.....how ridiculous is that?!  No not all class D amps are great but there are plenty that are EVERY BIT AS GOOD (and better) than any other design.
I had a Bel Canto Class D amp a few years ago and it was awful. However, I heard the Channel Islands Audio Class D mono block amps a while ago at an audio show and judged them to be outstanding.  Class D amp technology has progressed and I don't doubt it will be the wave of the future for audiophiles.  

Folks - really enjoyed reading this long thread. Very much appreciate the education and the discussion!

Just bought a pair of Bel Canto Ref600m on the Gon and found this thread after doing so.

I opted to go this route while trying to upgrade my amplification - which is currently a Supernait 2 driving PMC Twenty 26s. While the sound can be quite nice at times I’m thinking I’m underpowered - the Snait 2 is only 80 watts and the speakers are not an easy load - sensitivity of 86 reported (though probably lower based on some of my reading) and can go down to under 4 ohms. I’m hoping for a more dynamic range for orchestral music which sounds a little congested/strained currently. Plus I’d just like to hear the Bel Cantos.

I landed here after finding other options (with an eye to Class A) for getting more power to be a challenge - and thus not able to pull the trigger on something. I looked quite seriously at a demo Pass labs 250 INT - but while I am sure they are really great - are HUGE and serious $$$. I’d also have to get a new rack to hold them - even more $$$ and space.

Basically, Class D appealed due to cost and size. Reviews have been solid. The pair was under 4k less than a year old. And if I don’t like them they can go back to the Gon and I will be out a small amount of $$$ to test them in house! Pretty good deal (says the recent purchaser!) The new Bel Cantos is the new chip or whatever - different technology used than all their other units - so I am hoping for good things. this is going to cost me as I skipped the monos from Wyred for Sound cyber monday special - could of had those 1000sx pair for around $2200 - hope I made the right call!

anyhow - Really glad to have found this thread!

I’ll be sure to post how they sound!