Tested the entire lineup of Focal closed-backs yesterday at CanJam London. And I was cheeky enough to take my Dekoni Stellia Pads with me to swap out the Elegia stock pads and compare them with the rest of the line up that way.
My simple conclusions are:
1. The Dekoni Stellia pads do improve the bass on the Elegia and don't alter the mids. However there is a veil on the mids to my ears that benefits from being EQ'd out. With the pad swap and EQ the Focal Elegia trades blows with any of the rest of the lineup and wins on occasion. To be honest, I'd say the EQ alone would do the trick for me but the Bass from the pad swap is a nice cherry on top.
2 - Without EQ, the Radiance was my favourite in the lineup. I was lucky enough to test it before a guy bought the set I was listening to. The last one in Europe apparently. Lovely smooth bass and warm mids without sounding veiled.
3. The Celestee was the most forward and aggressive sounding. You won't miss a detail there. But it was too much for me. I felt boxed in and as though I was under attack.
4. The Stellia.... I've heard them before and for some reason they never quite do it for me, but I prefer them to the Celestee for sure. They are supposedly more resolving, but the noise at CanJam made that difficult to fully appreciate. They are the most spacious sounding of the closed backs. Listening to them and then following that with the Utopia helped me understand the Utopia (as someone who also owns the Clear Pro OG), but the Utopia is on a level of its own and is untouchable in the Focal lineup. But back to closed backs, I prefer the Radiance and the Elegia (with all the tweaks) to the Stellia.
All in all, the Elegia is not perfect, but it's great for what it is and it takes very little to make them go from good to great-great (not a typo), especially for their current price.