Derrick

Hi, I have a Marantz PM6006 integrated amp which drives 45 watts at 8 ohms and 60 watts at 4 ohms. It is currently hooked up to 6 ohm speaks with 90 db sensitivity (93 in room) and they sound fine. I am looking to upgrade my speakers and am wondering which Klipsch floor standing speaker under $5,000 (for the pair) would be the best fit. My room is medium size, approx 12X16. Thanks