Class D amps seem poised to take over. Then what?


I am certainly biased by my lifetime final amp being a Class D. But I know that after 30+ years of development, Class D seems to be on a high plain. I know there are now many, many companies focusing on Class D and, maybe, a good handful already as good as it gets. My Class D amp is as smooth and beautifully musical as a great tube amp and as punchy and detailed as a great SS amp. I am satisfied and done with my search. A class D amp has effectively taken me off the amp merry-go-round. It’s about time after 50 years. And, for me, this Class D is a milestone. Will all other classes of amps fade away?
mglik

Showing 7 responses by jtgofish

Still not convinced sorry.I recently got to hear the latest Purifi class D [P452 I believe] in a very good system-Magicos/Accuphase and they still sound phasey.There is certainly less haze than earlier but they still struggle to create convincing image depth and height.So just not 3D enough.And sorry but the whole point of stereo recording and reproduction is imaging.I know a lot of people can’t seem to hear that sort of imaging and for them class D might be fine but it in absolute terms it is still flawed.
Switching back to the Accuphase and the comparison made the Purifi class D sound as flat and as dry as a gluten free flatbread that had been left on the back shelf of a VW beetle in Death Valley since about 1974.
Atmasphere,The other problem I am hearing is how mechanical it sounds.I hooked up my Gale 401s which are famous for their rhythm, groove and timing  and now they sound like the music is being played by robots! I would have never thought any amp could do that but somehow it is.To me that indicates some fundamentals are really srewed up.
Ralph,I trust your ears and judgement.
Any suggestions of Class D that have decent image depth and musical engagement?The only one I have heard which I thought sounded OK was a Hypex based Nord but that was only briefly at a hi fi show so I would need to listen longer and to my own music to confirm that impression.I do wonder if in trying to make the Purifi "perfect" [well measure perfect] they have overcooked it and made it worse.

You can certainly get plenty of body and warmth out of SS amps.It may not be typical for the breed but SS amps like that are not hard to find.Most of the Nelson Pass amps,Audio Flight,Electrocompaniet,Usher,Sugden,Dartzeel and
 many more.And Bakoons which are really special and seem to combine the very best traits of SETs and class A SS.
If you combine a DHT preamp and a transparent SS amp you are most of the way towards a very good tube like sound.
This is a matter of scale and I’ve not heard a conventional solid state amp including those on this list (excluding the Bakoon) that is as smooth and detailed as a good class D.

Ralph,Yes I can see how somebody might make that conclusion and be seduced.The smoothness and detail is there.I would add articulation and leading edge precision to that.The Bakoons have all that too.However what is missing is the decay,the harmonics, the shimmer,the lilt,the atmosphere,the musical feel,the tintinabulation.To quote our former Prime Minister Paul Keating-all tip and no iceberg.

No  it was me with the Bakoon .You really need to hear a Bakoon amplifier rather than just a headphone amplifier.Even the very affordable 15 watt 7511 Mk3 will give you a good taste of the Bakoon sound.The Korean Bakoons look a lot nicer than the Japanese ones and have fancier boxes but are not as good value.
I had the 50 watt monoblock 5515M on loan for a few months.They are what got me hooked on the Bakoon sound.As friend said you can’t unhear that sound.I agree the Bakoons excel at the musical and tonal flow.I have never heard an amplifier [well a Kondo IOngaku does] do little note bends/lilt like it.If you listen to say Avashai Cohen,Anat Fort ,Bill Evans,The Flying Bulgars,Cat Empire or a sublime singer like Eddi Reader you hear all that interesting stuff which I am sure you would hear in a live performance but most amps can’t properly resolve.