I came to this thread searching on Devore, and also found the Lampi. I have been a long time owner of Lampi and own the Golden Gate (with Jupiter caps). The GG sounds best with KR 242, KR PX25, or the special Lampi 45s depending on the rest of the system chain - rolling the tubes changes the output so the way it couples to the preamp. If you get this right, your system will take off to new levels. The GG is far superior to the Atlantic if you are listening to complex material, like orchestral. Also to the Big 7. The dynamic range, resolution, and macro dynamics are much more. I have compared the GG to the Vivaldi, Big 7 to the Trinity, to the 40k Aries Cerat, the top Nagra dac and transport, and to multiple Esoterics K01s. Also once to the MSB Select II. I preferred it to all. But I had to roll tubes, as with the wrong tube it sounded less good. This is the beauty - the other dacs were static, while the GG could change. The Atlantic imo can be beaten by higher priced dacs though it is a good valve dac. The GG is much more than that. Now, the thing is, I also prefer it to the Lampi Pacific. The Pacific is a very different dac and some of my friends upgraded, but I find it to be a very different sound not to my liking. So for me GG is the final piece.. The other good digital I like is Neodio Origine, MSB, Aries Cerat, and Total Dac.
Now to the Devore. After being a fan of big horns, and having heard many from vintage Western Electrics and Siemens Bionor to 400k Cessaros and more practical 30k hORNs Universum and Tune Audio Anima, I never liked compromised models of full range horns - the ones with a digital woofer like Duos, Cessaro Liszt, etc. The full ranges were either expensive or very big (for a central London apt) or both.
I then came across the Devore Orangutan O96 and loved them. I have heard Trenner and Friedl Ra, AN J, Tannoys, but the O96 are my current favorites as a compromise to big horns. In fact, I don’t like cones and preferred them to a 20k and a 65k Lansche in the same room. The reason is that the O96 is more transparent to recordings. I haven’t bought them yet and am investigating. I heard them in one room with New Audio Frontiers (NAF) 2a3 8w amp, a German 550 valve 20w amp, a Jadis 100w integrated, and the Silvercore 833c 20w amp. I heard them in another room with the Kondo Overture 30w EL34 integrated (30k euro) and the Unison research Triode 25.
My favorite by far was the NAF. It also is cheap on the used market, at least in the EU. I think the Art Audio 300b Diavolo will also do well though I have not heard it on the Devore, but have compared Art Audio amps on another speaker. It sounds best with the WE reissue compared to the KR, Elrog or EML mesh.
If you are into recordings and transparency to recordings, the NAF is the easy pick. If you want more power and speed the Jadis is pretty good. However compared to the NAF it makes different notes on a violin or a piano sound more similar. The 2a3 is more nuanced tube, after all. That said, this is only with relevance to the Devore...I do not think the NAF is a fast 2a3 amp like for example the Audio Note Empress, but that is 6w and I do not know if it suits the Devore. It is not an integrated either. The NAF is more SS like...clean, good drive, transparent, backward layering, makes speakers disappear. I am normally a fan of greater power but not here. I also want to try Berning on this, and the Ayon. I am due a compare of Ayon, Jinro, and Kegon soon but on AN J, not Devore.
I would like to hear it with the Shindo. Caelin, the man behind Shunyata, owns the O96 and has tried it with everything from Constellation Centaur to Ayon SET amps and says it sounds good with all.