Does anyone have any experience of hybrid valve and solid state power amps?


Hi guys

I ask this question because I recently had a listen to a JE Audio Dyad S400 power amp. I was very impressed by its performance, but, correct me if I'm wrong there don't seem to be many hybrids around, or are there?


What are your thoughts on how they compare to other designs?

bazb


@bazb ,
hi, i'm also interested in Dyad amp. would you describe how the sound image portrayed in that setup ? what kind of music you tested in the audition?
does it sound forward but seemingly relax and lean, airy and have more SILKY sparkle in the high ?
is it more spacious, orchestra instrument separation, airy presentation ?
is it capable to resolve complex passages & pop electronic music better ?
lastly, does it sound slightly veil or clarity with hear through effect ?
any info would be appreciated. Thank you.
-phil


Hi Phil

I have heard this amp on several occasions now, both at the dealers and in a friends set-up. It's difficult to evaluate in my friends set-up because it's difficult to tell what exactly each component is contributing. However, in his set-up it sounds excellent. He likes to play the music much louder than myself, and despite the high volume I can happily listen to his set-up for several hours without any listener fatigue.


The listen I had in the dealers was more illuminating. When I heard it I was actually auditioning amps retailing for less than a quarter of the Dyad's price. If I was rating these amps at around 4 or 5 out of 10 then by comparison I'd have given the Dyad 10 out of 10. It was simply in a different league. I listen mainly to rock/heavy metal and many of my favourite records sound lifeless and compressed. The Dyad opened up these recordings and delivered a level of transparency and space around the instruments that was stunning. This scale and depth of sound was also apparent on well recorded tracks. It sounded very musical and brought recordings to life.


Unfortunately, its well outside my price range otherwise I'd have bought it. I hope these comments are helpful, and if you can afford it I would urge you to audition one and let us know how you get on!

Vincent audio SV -237. Great amp and when you factor in cost it's even a better bargain.
I’ve had both an Aesthetix Calypso and then a new Aesthetix Janus driving an Atlas with very good results on Thiel 2.4s. I am contemplating selling the Atlas...its a beast which at age 60 I'm tired of wrestling...so I had been looking to Bel Canto but was disappointed in the Ref 600s I trialed for a week. That led me back to solid state gear. At the moment I am utterly shocked that I’m liking the Bryston cubed amps which are sweet an delicate completely UNLIKE what I experienced a few years ago with the Bryston Squared series which I hated...very very harsh and metallic upper midrange. I’m also seeking to somehow trial a Pass Amp.  Both of which of course would just put be back into another 100 pounds amp but I'm looking for bullet proof and I think both the Bryston and Pass products are pretty much that.  But back to your question the hybrid tube front-end with the solid state driver stage on the Atlas was a very very good design involving Jim White. The amp has absolutely top quality parts and some innovative engineering in it. Consider an Atlas. It has not been trouble free though ... its in California right now getting a new board that developed a short. It will come back good as new to Atlanta soon I hope.  I may or may not sell it.  Still pondering.