Speaker recommendations 10 to 30k and no beryllium

Vandersteen Quatro Wood, Monitor Audio Platinum 300 II or 500 II, used Wilsons, ProAc K6, etc. 

smod! There is no dynamic loudspeaker as tough and durable as the Sound Labs. Literally you can not blow them up and they can go VERY loud. They are also harder to hurt physically than dynamics. Your 3 year old can kick them all he wants. He'll break his foot before he hurts the speaker. Quads were very fragile and gave ESLs a bad rep. There is no and I mean no dynamic loudspeaker that can come close to matching the Sound Labs for shear accuracy. Distortion is an order of magnitude lower and there is no cross over to screw up phase relationships. Room acoustics are much less of a problem because Sound Labs are dipoles so they do not radiate sound to the sides, up or down. There are much fewer loud early reflections. Don't believe me. Read the reviews. Ask Atmasphere and Audiokinesis. If you add subwoofers down the line you will easily hit 110 dB. They are right in your price range. Once you hear them you will never look back. You will die laughing at people who spend $250 K on Wilson's.  

It would be good to know what you like to listen to. My room is close in size to yours and my Peak Consult Princess Signatures running off a Line Magnetic 508ia are spectacular for the jazz and chamber music I prefer. Blew the Joseph Audio away. But for symphonic and real rock, the system weakens. 

I would recommend Soundlab speakers

Most 30K speakers are huge by comparison (think room dividers) and are very heavy. Shipping costs are many hundreds of dollars, and likely will require help to unbox and set them up


Also it sounds like this is a shared room. Many uber high end speakers need to be well out from the front wall (~ 6ft+), so just keep those things in mind when deciding what to buy

hth