I am planning to finish out my complete surround sound speaker selection shortly. I currently own Klipsh speakers KG4.2 and 2 surrounds. I received a Def Tech center channel speaker as a gift, (the Pro100, which I would change to the C2). My concern is whether I should keep all the speakers the same, and get Klipsch center and subwoofer speakers, or is mixing both Klispch and Def tech a fine or even better idea.