I just posted this in your other conversation:
I heard some 3 way Focals a long time ago, I loved them, one of the few speakers I might consider if my existing died.
I have recently read, here, that some find the Focals ’bright’, and you are asking for more warmth.
I prefer tubes, both preamp and amp; separates or integrated (I chose my vintage preamp to get a full featured preamp, and only use my integrated Cayin as an amp, (sometimes to run something direct, to check/rule a problem out).
I get remote volume/mute/balance for my vintage McIntosh mx110z tube tuner/preamp (any preamp without remote) from a remote line controller. IOW, I am not ’straight wire with gain’ (tried it, no advantage I or my friends could hear).
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So, your speakers, 91.5 db sensitivity, you could use tubes for both preamp and amp. A tube preamp and A single mc275 (75 wpc x 2) would be wonderful and I think enough power, your speakers are nominal 8 ohm, they have a dip to 3.1 ohms. You always have the option of getting a second one, running them Mono, 150 wpc as hydca does.
Now, is that warm ’enough’? or are the Focals just to ’bright’ for you? Not the preamp/amp, thus it’s the characteristic of the Focal sound.
IF so, you are all set with ’warm’ tube preamp and 75 wpc or 150 wpc tube amp, sell the Focals, or trade them in.

