Best light weight full range speaker recommendation.

Easy answer for me.

Try to find (or talk Jon) into building a set of the Ohm Walsh SSC4900's.

Very light due to the tubes, HUGE full range sound.  

Or find some old sound cylinders and send them in for an upgrade.

Crazy full rage sound if set-up properly and sub 50lbs easy.  Not perfect, but far and away the most "full" range speaker given the weight I've ever heard.

Vienna acoustics Mozart grand. 

Nola audio. The new model Champs3 put on quite a show at Capital Audio Fest.I own Nola at 6X the price. Yes mine sound better. Had I stumbled on them I'd own then quite contenly.

I use Martin Logan Spire’s. They’re 5 feet tall, and only weigh 57 pounds. 95% of that weight is in the speakers woofer base. The electrostatic panel weighs nothing. They’re full range with as deep a bass as anyone needs. $3300 used from a local seller, and the speakers were barely used in like new condition with the $2000 upgraded Bubinga finish. I replaced a set of Theos with these. The performance difference is night and day and very dramatic. These actually integrate the bass with the panel very nicely. No need to spend $10k on a set of speakers to get excellent stereo performance. The speakers sold new for $9k, so it’s not necessary to spend more for a quality speaker. I’ve purchased jazz archtop guitars for many times more than the cost of these speakers.

re Gershman Grand Avant Garde

I seriously could not come up with anything to make that speaker uglier, aesthetically speaking

My wife likes its appearance much better than plain looking rectangular speakers. My daughter is very artistic (an art major) and she prefers ists looking to other speakers I had:  Harbeths, Tyler, B&W, Apogee, ...

So for me, Avant Garde wins big on its athestics. ;-)