If you want great sound in areas, adjustability to any room to get that great sound, VMPS 626Rs (monitors) with auricaps and sound deadening. VMPS RM30s, or VMPS RM40s (both of these are floor standing). All have a similar sound, transparent, lively, great detail across all frequencies, capable of tailoring the sound to any position and room, and very dynamic. If you are a bass freak, the 626s might need a sub and the VMPS's are known for their outstanding bass (subs too). They could each be had for your price range. The 40's would definitely have to be at used prices, however. You could get the 626's with a sub and be in the range.
Where to go after Polk LSI15's
As the new year approaches I'm beginning to get the audiophile itch---something I haven't had in over four years, which is the longest I've gone without the itch. I have a combination of AVA and Odyssey electronics,and Polk LSI15's. I'm thinking of upgrading the Polk's and would like to get suggestions as to the next logical speaker upgrade---particularly from former LSI15 owners. $2,500 - 3,000 range max. Thanks in advance for your feedback.