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

Showing 10 responses by georgehifi

That is trolling
Only in your mind, because you refuse to accept that the higher switching frequency has yet to be realized, and you can't hear anything wrong with it where it is at the present.
Even though companies like Technics are showing the way and striving for higher frequencies, with their very expensive SE-R1.

And as far as not giving any positive post go, I said they have a bass control that can't be equaled, and I'll be the first to get the newer generation of higher switching frequency ones, when they evolve which will fix the problems that many hear in the upper mid and highs, and you obviousely can't.

Cheers George  
You originated this thread pretending you want to learn about class D, while knowing you hate it.
I will remember your login and will be careful to answer your posts next time.
Maybe it's some that are so pro Class-D as it stands, and can't/refuse to see that it's maybe it's not become of age yet.
If they can concede that Technics with their SE-R1 are showing the way in the area of switching noise frequency development, maybe then there'll be an even faster development in that area by other class-d manufacturers demanding to have those components to make it happen. 

Cheers George  
Kijanki, I don't think that anybody is doubting that your amplifier sounds brilliant to you. At the same time, I think it's okay for others to be less satisfied about what they hear. Don't get me wrong. Class D is the future and there are a lot of audiophiles sitting on the sidelines, waiting for the technology to mature.
+1, and the only way is to speak up and get it done. So far Technics is leading the way.

Cheers George 
"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?"
That is the debate, my answer is no, not yet, (except in the bass & upper bass). And it’s not because of the power, but more the damping factor (low impedance output) which some say is aided by of gobs of feedback.

Cheers George
(reduced price,electricity consumption,heat, size and weight)

Take the "green" thing out of it  has nothing to do with sound quality.

Audiopiles have never been "green" let face it those that keep on about the "green thing"  are a bit hypocritical. It's a wonder we aren't dead just listening to our "non green" audio.
I bet the greenies that spruik the "class d green thing" ignore the rest of the toxic waste dump inside their other audio equipment.
 
the energy tube and s/s use
before vinyl it was bakalite
then vinyl
Boron cantilevers
Nickle inside tubes
Toxic fluid in capacitors
Beryllium dome drivers
CD's
ect ect  ect  

Cheers George
Mapman, I'm glad that you enjoy your Ice Modules. The KEF LS50 was just released in an active version. The woofer is powered by Class D and the tweeter is powered by Class AB. Does this mean that there is a problem with Class D higher frequencies to some ears...or is it just an issue with procurement budget and not being able to purchase the better Class D modules? I don't have those answers but it is food for thought.

Kef know what's better for the upper range with using an A/B amp for it, otherwise they would have used another smaller Class-D for it as well, instead of just for the bass, and it would have cost less to manufacture, and been "greener", then they could have called it Kef LS50"G" active.

Cheers George 
Bel-Canto Ref 600 mono’s as the newest and most complete.
They really respond to tuning with power cords! They are green, run cool, but perhaps as important they are much easer to move around. Are they the last word in amps? not yet.. but getting much better day by day.
+1 They have sounded the best Class-D to me so far, but they have modded the filters of the newest Hypex modules to do it.

As you said "are they the last word not yet", and I agree, as for me to have liked them, they had to be driving a very benign 6ohm load of a very expensive Raven Ribbon to get me to say this. Even then with long term listening they were still a bit too "cold/analytical" sounding in the upper range.

Cheers George
http://www.futurlec.com/News/TI/AudioSolution.shtml
Try to find any of these module numbers on the TI website, especially the last one that drives the analogue speaker, I couldn't.
Someone once told me never ever get anything from these guys.

Cheers George
grannyring
Is the S500 made by Red Dragon?
It maybe assembled by them, but it sure looks like the modules come from here. As do the Rowland Continum S2 
https://forum.audiogon.com/posts/1428517

Cheers George