Class A or Class D solid-state amplifiers (modern designs)


Hey guys.

 

Class A is supposedly superior. Something to do with a conduction angle of 360 degrees...so the entire signal gets processed in one go without crossover distortion.

But in terms of sound quality (subjective enjoyment) is there a benefit to Class A? Can class D provide the same level of enjoyment?

 

The dealer I’m talking to says that really nice Class A amplifiers are designed for "reference quality" meaning completely true to the real life performance.

 

Let’s compare and contrast. Which one is technically better?

 

In other words, could you have equal technical performance and quality in a Class D amp?

 

- Jack.

jackhifiguy

Showing 4 responses by yyzsantabarbara

I have some really nice Class A amps. Though my fav amp is still the cheaper non-Class A Benchmark AHB2. I just wish it had more power, though in Mono configuration it is high powered for speakers above 2 Ohms. It has that clean Class A sound and is very smooth. I feel it is just the most crystal clean sound I have heard from any amp.

The stock LSA Voyager GAN 350, mentioned a few times above, is good but after the very low-cost mods by EVS it sounded a lot like the AHB2, my highest compliant for an amp. I sold the Voyager since I liked the AHB2 a little more. I kind of wish I kept it as a backup.

As posted above the AHB2 is not Class D.

@lancelock

My dealer says he’s bringing the AGD Gran Vivace over for a listen so we will see how it stacks up to the Coda. Price wise it’s more apples to apples.

Did you ever do the comparison of the Gran Vivace to the CODA #16? I also own the #16 and a PeachTree GAN1 (modded). The modded GAN1 is almost as good as the #16 but a real PIA to use because it is more than an amp.

I am looking to get a GAN amp and the Gran Vivace is something that I am considering. Main reason for the GAN decision is because the Peachtree GAN1 sounds really good, and I need something with a very small form factor and some power behind it.

The CODA #16 will stay in my office system. I need an amp for my Livingroom system.

That will give me a reason to go to the LA show. I used to go to all the shows, but I am now almost done shopping for gear so the desire to see new gear is not so great. 

Just need a DAC and amp.

There are some great dealers in the LA area. One year I was at the LA show and had a big room with KEF Blade 1 (my fav) and Hegel monos basically all to myself. The lady in charge played over an hour of music on the Blades.