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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
guidocorona
4,298 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
114 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
4,298 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 Several years ago I review the now withdrawn Bel Canto REF1000 Mk.2 monos for PFO....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
11,979 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.
seanheis1 OP
630 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.
You might want to hear them first. They are not for everybody. Most people feel that they are incredibly clean sounding with great control of the bass. However, some people also feel that they sound lifeless in the midrange compared to high end linear amps. Of particular importance is the module that is being used. Of less importance is the brand name responsible for putting the module and power supply in the case and tweaking the input stage to create a house sound. Tube preamps can help with the lifeless sound, although some prefer that sound. Good luck.     
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