Mirage OC 260 or ?

I'm looking to replace my Klipsch KG 4.5's. I have a NAD 762 reciever. I'm looking at picking up a set of Mirage 260 speakers. I can get a new set for $590.00. I cannot find much on these speakers but the few professional reviews seem to give them good reviews. I have a room that is 13x16. I'm open to any suggestions my budget is $600 new or used. These will be used for both music and HT.