Where to go after Polk LSI15's

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.

I've heard the Polks in a store once, so I can't really comment on them one way or the other. Having said that, The price range you're talking about is exactly what a pair of Focal 836v floorstanding speakers cost. I've owned mine for about a little over 6 months and love them more than the day I brought them home. I've heard speakers that sounded both "different" and "better", but the "better" was always either a much more expensive speaker or much better supporting equipment than I have. Try to find a place to listen to a pair and see if you don't like them.

I too owned and loved the LSi15s for quite some time. I now own the Boston Acoustics E-100 and love them but if I were looking for something that would take all of the strengths of the 15s and improve upon them now I would get the Goldenear Triton 2s.

http://hometheaterreview.com/goldenear-technology-triton-two-loudspeaker-reviewed/

Polk's new LSi's will be out soon and will be a substantial step up from their current LSi series.

Magnepan 1.7 if you got the room. You will get a larger sound display than the Lsi 15s.

In my case the Lsi 15s are hard to beat without spending lots of money. I got my Lsi 15s as demos at about 1/3 of the retail price.