I think it is very hard to make any specific recommendations, given different tastes, room setups, completely unpredictable interaction between components, etc. So, at best, we can recommend items for you to try in the hopes of achieving what you desire.
I am a bit surprised that you found the Eidolons to be cool and lean. The various iterations of the Eidolon I've heard, while not particularly lush, seemed to be on the warmer, less analytical side. My own take of the speaker (based on limited exposure) is that they needed a touch more liveliness (something from the OTL camp, perhaps, would help).
Still, if you are looking on the warmer side, I would suggest trying the Hovland solid state amp. I heard the Eidolon (diamond) with a Hovland chain of amplification and it sounded pretty warm and sweet.
I am a bit surprised that you found the Eidolons to be cool and lean. The various iterations of the Eidolon I've heard, while not particularly lush, seemed to be on the warmer, less analytical side. My own take of the speaker (based on limited exposure) is that they needed a touch more liveliness (something from the OTL camp, perhaps, would help).
Still, if you are looking on the warmer side, I would suggest trying the Hovland solid state amp. I heard the Eidolon (diamond) with a Hovland chain of amplification and it sounded pretty warm and sweet.