Sterophile measured and reviewed the Electra 1037, so the generation prior and the larger speaker. I’m guessing the measurements are similar but don’t know. Anyway John states that they will sounds tipped up when using tube amps. https://www.stereophile.com/content/focal-electra-1037-be-loudspeaker-measurements
So just be careful you don’t get the opposite effect you are looking for.
So just be careful you don’t get the opposite effect you are looking for.