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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
erik_squires OP
16,412 posts
 
I am really not a fan of silver over copper cables. 

However, solid silver interconnects are pretty good and inexpensive to build on your own. 

Best,

E
maplegrovemusic's avatar
maplegrovemusic
1,113 posts
 
@erik squires
Eric , I purchased a used pair of Bang & Olufsen Penta 1 loudspeakers a few months ago on craigslist. They are circa 1989 . They are active with class d amps inside . These are in no way bright or fatiguing , things I have associated with older class d amps . Looking to find out how and why this could be ? 
mr_m
1,900 posts
 
This is probably over simplifying or incorrect, but maybe their maker voiced the speaker to the internal amps? Or did the amps only power the bass drivers?
erik_squires OP
16,412 posts
 
@maplegrovemusic 

I don't find good digital amps bright or fatiguing today. 

In the late 1980's I was listening to some digital amps that sure were though! 

I don't know how old the B&O/ICEpower designs are, but that's what I listen to every day now. :)  It's quite possible the speakers, designed as integrated wholes, eliminated issues with the rest of the Class D crop. 

I will say that the Class D amps I was listening to wwas through entirely different speakers, TAD pro studio monitors from the time, so that could have been a horrible match overall. 
georgehifi's avatar
georgehifi
10,312 posts
 
maplegrovemusic
  They are active with class d amps inside . These are in no way bright or fatiguing , things I have associated with older class d amps . Looking to find out how and why this could be ?
This may help, but the reviewer found it  a bit dry and lacking in harmonic complexity and bloom in the upper midrange, a bit dry in the mids, and maybe even somewhat aggressive on top.
It's one of the first, commercial Class-D that came after the original Class-T (Google these also as they only used N channel fets which allowed in some cases a higher switching frequency) 
The 18 year old Sharp  SM-SX100 Class-D, if you look at the 4 ohm frequency response it's already starting to roll off the high frequencies at 2khz, and the simulated speaker load is not much better.
https://www.stereophile.com/content/sharp-sm-sx100-digital-integrated-amplifier-measurements

Cheers George

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