Good $2k Used Speakers for 20wpc tube amp


Hi Folks,

I recently entered the world of good audio equipment (very recently--last Friday) by purchasing a Manley Stingray integrated amp to replace the 16 year old rotel that had given up the ghost. My system is: NAD 525BEE CD player, Music Hall MMF 2.1 Turntable, older Phonomena Phono Amp (bought used from a friend), Stingray, and 16 year old Boston Accoustics T930-II speakers, which seem the weak link. I am now looking to replace the non-Stingray/Phonomena pieces as budget allows, speakers first.

The Manley has two modes, U/L (40wpc), and Triode (20 wpc). It makes sense to me to consider speakers that are efficient enough to use both. Can people point me in the direction of speakers that may run about $2k used, give or take, and would be a good comlement to the Stingray? Thanks very much.
jhsjhs
Thanks for asking, I should have included: 12 feet wide by rougly 30 feet long, with a staircase that bisects the room. Cathedral cielings, about 12 feet high at highest point. Not ideally shaped, but what can you do? Pretty broad music tastes, most of my collection rock/soul/funk, but recently collecting more classical.
coincident conquest, super conquest, eclipse or super eclipse all rated at 94db or better, great with SET's and sound amazing.
There is test in TAS (3/09) on a new Cerwin-Vega cls-215 speaker at a grand retail. From everything they say plays loud and easy to drive and maybe as good as most in the 5k region.