I would suggest Spatial Audio labs X5 speakers. Because of their built in 250 watt 12" subwoofers (which are adjustable) they are 97db efficient and can be run with as few as 8-10 watts. Your amp is only driving the mid and the tweeter on the X5s. Best speakers I have heard or owned.
Speakers for triode tube amps
I have a Luxman CL 38u SE tube preamp and matching MQ 88 SE Triode tube amp rated at 25 wpc. I m using ProAc Anniversary Tablets at the moment and I’m wondering how I can upgrade to a speaker that can be driven with 25 Triode watts. Any recommendations on a high quality 8 ohm speaker that is easy to drive? I know Wilson Tune Tots are out of the question (impedance/ sensitivity issues- they were my first choice. Not interested in horn loaded speakers. I Love the Harbeth P3 but I already own a pair of 40.1s in my main system. Any suggestions??