Class "D" amp? I do not have a clue. Do you?


I have been a serious audiophile for 30 years and class "D" audio is new to me. Most important, what do they sound like?
orpheus10
Mapman, Initially upon listening and buying a couple of the class D amps I found that they did most things overall to acceptable levels and felt their performance in most cases was overall quite satisfying.

However, in my case, I found that they felt thinner (not necessarily thin, just thinner) in sound than what I like. Maybe I am using the wrong term here so I will try to explain it better. My experience over time was that it seemed like the sound wasn't as full (not flat, bloated, or overly warm sounding), just not as impactful or with as much weight behind it. I also found that the sound staging, while being wide enough, always seemed to lack the depth I was looking for and also that the focus was not always consistant. It seemed to me to change with volume levels in terms of the focus aspect. I also found that as the music became much more complex, that the focus and soundstage did not hold up as it did with more moderate "sized" recordings. Again, these are parameters that are important to me for my own satisfaction, not necessarily what is either "right" or what others may be seeking (hence my recommendation to audition for extended periods of time). Additionally, as I indicated, I certainly have a limited experience versus everything that is out there and have not auditioned some of the super high priced D amps.

My other equipment that was in/out of the system included the following:

Amps: Krell FPB 200, M. Levinson 331.5, BAT VK-60 X 2 running in Mono
Preamps: BAT 30i (?), Cary SLP (?), J Rowland Capri (I really liked this preamp), Aesthetix Calypso
Speakers: VS4jr, Watt/Puppy 5.1, Wilson Duettes, Thiel 2.2 (ebay buy for $200 that I couldn't pass up, a great deal for those speakers)
Sources: Resolution Audio Opus 21 w/ GNSC mods (good player at a good price), EMM Labs, Esoteric X-03se

So you can see that the sound that I like is more on the highly resolving level (except as referenced via the BAT and Cary stuff - which didn't last that long by the way in my system for my tastes).

So I certainly don't claim to be an expert on Class D amps and while I have listened to several, certainly not to all by a long shot. My experience has been and continues to be for my sound type, I have found that components that have the biggest and best power supplies have delivered the most satisfying results for ME. Not to say other should or will have the same goals as I.

However, this experience is the premise for my recommendation for long listening sessions so that one can discern their likes for the (lumping together here) Class D amp sound.
CK,

Can't say I'm experiencing any of those issues with the BC ref1000m monblocks in my rig these days.

I have never compared to say W4S equivalent. From what I have heard and read and based on what I know about the designs and the price difference, I would expect there to be a noticeable difference.
I agree with Mfsoa on the digital amp company. I got one used on the gon and have had it for about two years now, it is the best amp I have ever had. It runs cool, has loads of power and has a tube like sound to it, never bright, the model is called the 4800
CK,

One thing with the BC refs is they have very high damping factor, which I could imagine might make speakers that do not require high damping sound somewhat tighter or leaner perhaps.

The OHMs in my system are renowned for drinking lots of power and current and also to sound best with high damping, so the BCs were a very good match on paper and have panned out equally well in practice luckily.

I run a pair of small Triangle Titus XS monitor speakers off my system also. These are more efficient and easy to drive, more tube friendly speakers. The high damping and current may be a bit of overkill with these in that sometimes I detect a touch of leanness with these perhaps compared to some other amps I have used.
i have auditioned class d amps and they sound aggressive in the treble. that is the frequency response seems unbalanced.

there is a hybrid class d amp, virtue audio which incorporates gary dodd's tube buffer--a hybrid class d amp.