Class D amplifiers. What's the future look like?


I have a number of amplifiers: Luxman C900U, Bryston 4BSST2, Audio Research VSI 60 Integrated, NAD C298 and some other less noteworthy units. As I swap them in and out of my main system, I've come to the conclusion my very modest NAD C298 is about all I really need. Granted if I had extremely hard to drive speakers, I might be better with the Bryston or Luxman, but driving my Harbeth 40.2 speakers, the NAD is just fine. 

I thought a while ago that class D would quickly overtake amplifier design type mainly due to profit margin which I think would be much greater than A/B and tube. I'm not saying the other design styles would go away, just that D would be the most common style. 

Clearly my prediction is not panning out, at least in the mid and high-end audio world and I'm wondering why? It seems companies such as Bryston, Luxman, McIntosh, Hegel and so many others are sticking by A/B. I'm no "golden ears" guy, but is the perceived sound issue(weather real or imaginary) still holding D back? Maybe my assumption of profit margin is not correct? Maybe the amplifier manufacturers are experimenting with D, but keeping tight lipped until release? Perhaps brand loyalists don't want change similar to what happened with "new coke". What else am I missing?

 

128x12861falcon

So, if I understand you correctly @mahgister then the idea that the old school separate pre amp and amp approach being "better" would sort of fall under the bigger is better type of logic, as well?

No you did not understand me at all sorry...

I never said that bigger cannot be better, with or without pre-amp...

I never said that upgrading is useless...

I never said that costly design are not often way better...

I said that BEFORE thinking about bigger, upgrades, and costlier options, we must LEARN about acoustical, mechanical and electrical embeddings and also about synergy and optimization (tweaking ) ... We must learn about our own acoustic experience UNDERSTANDING ...

Because beside the "law" of diminushing return there is another principle i name M.A T.S. : minimum acoustic threshold satisfaction...

my own system is under 1000 bucks and i dont need anything more...Not because it is the better , it is not, but it is so well optimized and so well embedded that it put me in sonic heaven...

It takes me years to understand with experiments in a rooom how to embed a system... its pay now... I listen music with a relatively good timbre, with minimal spatial soundfield characteristics definition and actual immersiveness level optimal for the price...

I compute that it will cost me 10,000 bucks to upgrade my satisfying 700 bucks system , nothing less...

I dont need it because lost in music i am able to forget sound without being bothered by any too evident limitations... I called that a rightful embeddings in the three working dimensions for ANY system at ANY price : acoustic, mechanical and electrical...

 

 

 

 

@grannyring I'm wondering if you can please extoll the virtues of Lyngdorf's approach to Class D, as it relates to this thread?

And, hey! by the way ... tysm for the slick custom mods on my 2170!

I’ve seen that list of quotes before. They got debunked due to their age. A lot of those quotes you listed are from nearly 20 years ago.

Steeeerike one!

Your comment about GaNFETs seems a bit uninformed to me.

Steeeerike two!


As a result I’m of the opinion that class D is something to be reckoned with and isn’t at all as you described

Steeeerike three! Yerrrr OUT!!!

 

 

Great post from atmasphere answering the Quotes from decade ago...

it seems that class D and related design initiated a revolution , it is not an upgrade among other upgrade choices but another audio level not only for high end designer as him but for consumers  ...

😊