2. amps-preamps
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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
niodari's avatar
niodari
305 posts
 

Mark Levinson

"Interleaving of multiple Class D Amplifiers is potentially a step in the right direction, but does not go far enough.Personally I think that the best option would be something that combines a Class D Amplifier for the heavy lifting with something Class A for fine detail. 

Combination of designs of different class amplifiers may indeed work well. An example of such a combination of class D with class A was implemented in Digital Amplifier Company (DAC) Cherry amplifiers.  Tommy had further plans to develop this line, unfortunately he passed away. So far, Cherry Megaschino is the best class D amplifier I have ever heard though it does get hot and is not light at all). 

soix
9,772 posts
 

@atmasphere , From what i’ve experienced thus far, the type of stuff you do could work for guys who mostly roll with midfi (they may think it’s hifi) or don’t have a high enough "point of reference". But, that shouldn’t worry you. You could still make enough money selling to those guys. IMO, what you won’t be able to do is convince guys who roll with any higher level of gear that your stuff should be sufficient for them as well.

Wow. Just…wow. The arrogance of this condescending statement directed toward one of the most respected amp designers in the industry without ever even having heard the amp is…wow. Speechless.

kennyc
1,619 posts
 

+1 @soix 

strawj's avatar
strawj
79 posts
 

Geese class D For Divisive?! Any way I actually love mine for one thing they save me a ton of money in initial cost -for -power and for running all night on streaming. Paired with some Harbeth 30.1's that are so easy to drive it works great. Only the Peachtree NOVA BTW. Quiet as a church mouse and no problems. Previous Krell equipment was a constant problem with clipping and grounding et al. Sometimes I wonder if I'm even still an "Audiophile"- Step 1 IS the MOST important 1 after all.

invalid
1,244 posts
 

You must not have had a big krell amp if you were constantly clipping it.

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