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

Showing 8 responses by inna

They will go the way of cd players, in ten years no one will need them. Ralph and others perhaps have some time to cash in. He does not prefer his class D to his and many others tube amps. He won't fool me.

If he really prefers his class D amps to tube amps then he fools himself.

In any case, he is on this forum for business purposes, whatever he says - remember that.

Reduced size, weight and cost are not benefits at all - they make the amps look less substantial. Kind of toys.

Reduced heat is a plus, though, especially from ecological point of view.

 All the great recordings of 50s, 60s and some 70s were made with tube equipment, they will continue sounding their best with tube equipment. As for other recordings, well, this might eventually be different.

Not my area of interest, anyway, I will be listening to tubes. I am more interested in speakers' progress, and cables too.

No-one will remember this class D in twenty years, and no- one really needs it except a few fashionistas. But we do need a completely new amplification device to be invented, both tubes and transistors virtually exhausted their potential. This is one more commercial BS, this class D, similar to another cd reissue, slightly better or slightly worse than the previous one.

I hope Reel-to-Reel comeback will happen, even if the scope of it is limited. There is nothing like tape. 

Speaking of bass and guitar players, with tubes you can tune and fine tune the sound by tube rolling. And with SS, any class ?

Ralph, you don't deny that with either tubes or transistors there is not much room left for big improvement. As you say, it's mostly better parts quality.

That's a great looking thing, especially with tubes. I wish my next amp would look similar.