Best small speaker

Acoustic Energy AE1 Signatures, considered by many to be 1 of the top 10 mini moniters of all time. Not made anymore and hard to find used, guess no one is selling theirs.....I'm not selling mine
The AE1 MkII offers perhaps 85-90% of the performance of the AE1 Signatures, and are easier to find, I believe there is a pair on Audiogon right now for 700 buckaroonies
dudeaudio

ATC SCM 7, ATC SCM 7, ATC SCM 7...........

The Reference 3A MM De Capo will not work well with your 75W tube amp. Look for a pair of used ATC SCM10( need a stand) for around $1000 to $1500 depends on the finish. If you want bigger sound, get the SCM20T. I found the JM Labs a bit analytical than ATCs.
Music perference is most important in choosing the right speaker. Proac Response 1SC is similar to B&W 805s except the B&W has rounder mids and Proac is lively and thinner sound.

Well, B&W and ATC are quite popular among recording studios. You can use them as your reference and try to figure out your taste.

I personally prefer none ported speaker. The ported speaker's bass is not as solid and tight feel. The only down side about none ported speakers is power hungry. The end result is more dense, dynamic and deeper bass than ported speakers I've audition.

Also, many people I know who got bookself speakers didn't like its bass response. If you love bass then bookshelf speakers is definitely not for you.

Finding the right speakers depends on persistence and chance. Persistence in arranging auditions and listening to candidates first hand with sources which one knows intimately. Chance because the dealers one visits may carry speakers one would never have thought of auditioning. In my last round of speaker auditioning we also listened to speakers from B&W, JM Lab, Dynaudio and others at various price points. I also recall a pair of mighty handsome Sonus Faber's. I can imagine that some speakers from the manufacturers named would do good service for some listeners, depending on personal preference. The speakers we did not like have not been mentioned. Given time, audition more broadly, then decide what you would like to live with. Otherwise, I concur with the above: since the JM Lab's have already passed muster, they would seem to be an excellent choice. Odysseus spent a good part of his life travelling about before Proteus told him what he already knew.

Second GMA Europas...their spacious, 3-d sound is very musical and involving...wont win the hyper- detail or bass wars...but their overall midrange phasecorrect coherency easily bested offerings at over 2 x the cost...great monitor...downside...they weigh 45lbs each...and are pretty ugly...but hey...nothings perfect!