2. amps-preamps
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Class D is just Dandy!

I thought it was time we had a pro- Class D thread. There's plenty of threads about comparisons, or detractors of Class D.

That's fine, you don't have to like Class D amps, and if you don't please go participate on one of those threads.

For those of us who are very happy and excited about having musical, capable amps that we can afford to keep on 24/7 and don't require large spaces to put them in, this thread is for you.

Please share your experiences with class D amps!
erik_squires
pokey77
1,266 posts
 
@erik_squires 

"Still, proof is in the listening."

Always!
sfseay's avatar
sfseay
496 posts
 
Proof maybe in the listening, but what you hear may be vastly different from what I hear even if we are sitting in the same room listening to the same equipment.  
atmasphere's avatar
atmasphere
11,793 posts
 
@erik_squires
That’s not what’s being done here. DSP is used entirely for electrical phase and amplitude. The actual speaker/room response is not considered. Quite a heavy handed approach to making an amp perform like an ideal voltage source.
That may be so as to avoid using global loop feedback, which is known to exacerbate higher ordered harmonics. Speculation on my part...
erik_squires OP
16,049 posts
 
Could be. But it could also be in addition to.

Looking at the specs for the B&O amps for instance, they could benefit from this idea.

Also, as I have noted, you CAN do this yourself using miniDSP, if you were so inclined. I wish I had the time/space/energy, it would be a fun project.

Best,

E
mdeblanc's avatar
mdeblanc
62 posts
 
Anyone running the PS Audio DirectStream DAC directly into their Class D amp? If so, are you using the filter on the DAC? Any idle noise when the display is lit on the DAC?
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