What amplifiers/integrateds do you like with Cornwall IVs?

Lots of great points to unpack. 

First up, the Jadis issue.  That is something.  I'm glad to hear that there may be a pair running under one.  I am 46 and never thought I'd own a Klipsch speaker.  I built an Elekit 300B and did many high end upgrades.  I like how the Klipsch Heritage Series sounds with well made tube amps. 

@jjss49 , I think you are probably right on the mark. There are others who are great and smaller who are more than deserved to be on your list above. I would open for question whether Cary is as good as the others but I must admit that's perception--not reality. I haven't heard their product in 12 years. 

@boothroyd, Yes. Exactly.  I love SET and how its topology sounds at certain levels but it is not enough watts even in many high efficiency setups.  I think 25-30 watts is ideal.

Boothroyd, tell us more about what you know on that Jadis combo. 

"...I'm wondering if KT150s are too much, and I should swap in EL34s or variants..."

A 25-50 watt EL-34 amp will give you everything the Cornwalls  have.    

Yes, russ69, I do think you are right.  It changes the field I'm playing on.  

First off, I was never a Klipsch fan back in my retail daze until I heard the mid-’80s version of the Cornwall II hooked up to a Kyocera stack w/an R861 receiver. All Walnut side panels in CWD walnut audio furniture & those walnut CIIs. A George Straight CD (happened to be handy) inserted/played to make sure all was working and OMG ~ Glorious midrange, real bass and overall tonality to die for!

That version ’85 Cornwall II made a closet Klipsch believer out of me!

Fast forward 20 years and the Klipsch Heritage Series is being (re)introduced. As bad luck would have it, my favorite Cornwall, now in version III, featured a cost savings Heresy midrange assembly as the factory had lost the tooling for the original midrange horn and wouldn’t spend the $$ on a new die. These Heritage products were expertly birthed & voiced by Mark Kauffman when he was with Klipsch.

It now appears that since the Klipsch Heritage series is a success, Roy Delgado has revamped the entire lineup along with the addition of a Forte III model, and horn technology more inline with his proven beliefs - hence the Cornwall IV featuring their (finally) purpose built Tractrix® midrange horn.

Jadis tube amplifiers, recognized for their seductive tone and musicality, have twice been placed on my radar screen recently with the DA88S and the Klipsch Cornwall IV pairing specifically.

While I personally have not experienced the DA88S ($14,995 US) with the Cornwall IV, I was told firsthand that the combo is a easy favorite at the Jadis Factory along with the French importer of Klipsch. On a 2nd unrelated encounter I discovered the guys at A/V Therapy had stumbled into the same exact pairing discovery in their NH store. I would suggest reaching out to them. John Rein is their ring leader whom I sure would be happy to share his enthusiam.