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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
16,051 posts
 
Hi Everyone,

Just FYI, Mytek has just posted info on their Class D amp to their web site.

The Mytek Amp fits perfectly under a Brooklyn DAC for a little under $2k. Order with the Brooklyn DAC and you get a $500 package discount ($3500 or so) which is a really good deal.

More here:

https://mytekdigital.com/hifi/products/brooklyn_amp/

For the power rating (250W/Ch) this is one of the smallest Class D amps I’ve ever seen.

I can’t wait to look inside it! :)

Erik
erik_squires OP
16,051 posts
 
Delta Sigma processing = digital. :)

Most Class D amps are not digital. Weird. :)

Best,


E
erik_squires OP
16,051 posts
 
I’m bringing this over from another thread, but Primare seems to be using their own digital amp modules, and Hi Fi News test reports praises their performance, unaffected by load, and flat to 60 kHz is quite a feat!

I also noticed how well Hi Fi is keeping track of Class D. Their comments about the relative differences between Class D modules shows they are taking the genre quite seriously, unlike say Stereophile, which has never bothered.

http://www.primare.net/assets/_managed/products/files/I32HiFiNews611UK.pdf

Best,

E
atmasphere's avatar
atmasphere
11,793 posts
 
Delta Sigma processing = digital. :)

Most Class D amps are not digital. Weird. :)
Delta Sigma is not digital. It is a process used for digital encoding and there is a nuance there; its safer to say that data in a memory system is 'digital' (1s and 0s). It is also a good process for encoding for class D operation and is attractive because it allows for direct playback of a class D amp from a digital source, although unless there is some upsampling the clock speeds of most digital sources are far too slow for good class D operation.

All, not most, class D amps are an analog process. The funny thing is, if you want, you can use digital chips (for the most part, inverters) in the class D process. But it is very much an analog process.
erik_squires OP
16,051 posts
 
Atmasphere,

If you use a delta-sigma encoding process, you are converting analog to digital, no? This AD conversion makes the amps "digital" a step most Class D amps do not need.

Otherwise, please show an example of a Class D amp which uses Delta-Sigma conversion which is not "digital"
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