Tube Amp for Devore O/96

@davehg 

I think the transformers made a big difference for the bass but initially the bass felt like it was soft. We swapped in larger Mundorf caps and wham! It was like adding half an octave of bass, and brought the performance within spitting distance of the EL34 amp. The caps added $600 to the build, but well worth it. Total cost was about $4k including the Gold Lion tubes.

I'm 100% in agreement concerning the vital importance of output transformer quality and better quality capacitors. I'm surprised that a SET of your amplifier's build was only 4K, seems quite the bargain from what I see. This is an amplifier that you'll have and enjoy for years I bet.

I've owned my 300b SET mono blocks for more than13 years and quite frankly my appreciation and admiration of them continues to grow.

Charles

I've heard the 0/96 driven by a Shindo Montrachet, that's a UL amp using EL34 tubes to put out 30 watts, to good effect in a medium sized room. I've not heard any of the other amps the OP is considering but love the idea of a pushpull triode amp a pp 2a3 amp in particular.

Something to consider is that John DeVore personally uses an Icon Audio amp in his setup. If the designer of the speakers uses them probably worth considering - 

Also I watched a Steve Huff video last night you would probably enjoy, the valve amp looks like the kind of thing that would be ideal 

Some good recommendations in this thread however were I the OP I would take a serious look at the NAF Supreme 300B SE.

http://v2.stereotimes.com/post/new-audio-frontiers-supreme-300b-special-edition-integrated-amplifier/

I forgot to add that my listening room is a very large open space,; with high ceilings and no walls, so I will need a decent bit of power. With that in mind, would the Jadis still be more amp than I need for my efficient speakers?

@flipturn 

I have been thinking more about your description from an earlier post. You have a lot of cubic space in your listening environment and as a result power capability requires consideration (Even with the efficient O-96).  Certainly the safer more predictable choice is a push-pull amplifier.

I don’t know if you have a budget ceiling or not. The NAF amplifiers with DHT tubes running class A push-pull have been mentioned several times for good reason, but they are pricey. The Jadis DA 50S you originally inquired about are less expensive, yet still a highly regarded amplifier from a very established manufacturer.

You will get 30 watts of pure class A power from the KT  120 pentode tubes. Also very stout and good quality output transformers and probably a “bit” of NFB in the circuit (I could be wrong about the addition of NFB). As had been said previously, you have many really good options to contemplate over.

Charles