High efficiency speakers


I am looking for medium size high efficiency speakers. How would you compare trenner & friedl RA and Devore orangutan 0/96? Any others I Should be looking at that similar or smaller footprint and can be driven sufficiently by 8w 300b SET? Thanks
edoit
Not sure about your price point but you should add Daedalus to your list. I heard the new Muse at CAF this weekend and it was exceptional. He has a number of other medium sized floor standers that are worth a look, including the Athena. All are very high efficiency designs.

There is a nice set of reviews on high efficiency speaker done by Jack Roberts on Dagogo.com plus a full review on the Devore's which is a nice read.
The Line Magnetic 755i speakers fit the bill perfectly.
I own them for over two years and can personally attest to their affinity with the Shindo Cortese and Corton-Charlemagne amps.
Make the effort to hear them.