I drive my Response 2.5s most satisfactorily with 14W of 300B SET. If the sensitivity and impedance haven't changed too much with the revision of the speaker, it should be just fine.
Proac Response D25 match with low power tube amp
Can a 14w Unison Research Preludio tube int amp drive the proac d25? anyone try using low power tube int amp with proac response d25 before? Asking this question because the proac official website say the speaker is so efficient that it can sounds good driven by amp as low as 10w.