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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
atmasphere's avatar
atmasphere
7,068 posts
 
The snag class D still deals with is the control loop (feedback).
Its easy enough to build a class D amp that does not use loop feedback.
guidocorona
4,114 posts
 

Hi keeponrockin, it is fabulous that you had an exceptional experience with the Leviathan.


Admittedly, I audition Leviathan several times at length, using my standard test tracks of piano, chamber, jazz/Krall, orchestra, and sax/vocalists, but only at RMAF.... What often happens at shows is that manufacturers bring along brand new devices fresh off the factory floor, with little or no break-in.... So, it is possible that I was experiencing the limitations of units which were not properly broken in.


Regards, Guido

rsa's avatar
rsa
98 posts
 
call me stupid but what do you mean by a "Output Filter" ? A L/C for you amp? Thanks, I am thinking about a Bel Canto but have never heard them.
guidocorona
4,114 posts
 

Hi RSA, you are safe with Bel Canto... Like Merrill Audio, Rowland, Theta, and D-Sonic, they are reported to make make wonderful amps. Several years ago I review the now withdrawn Bel Canto REF1000 Mk.2 monos for PFO.... Here is the article:


http://www.positive-feedback.com/Issue43/bel_canto_ref1000.htm 

atmasphere's avatar
atmasphere
7,068 posts
 
call me stupid but what do you mean by a "Output Filter" ? A L/C for you amp? Thanks, I am thinking about a Bel Canto but have never heard them.
Class D amps usually have an L/C filter at their outputs to prevent radiation of their switching frequency.
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