After having run Energy Take Classics with my SVS 20-39 PC+ Sub for over a year now, I was wanting to upgrade. I was first wanting to upgrade my center to a larger more efficient speaker but was also researching some towers. Went to an audio shop to look at centers & they had just taken in as a trade-in, a pair of Klipsch RF-52II's that we're in perfect shape clear down to the plastic over the grills, all in boxes just like new. Got them home & ordered the RC-42II as it fit perfect in my center channel space in my tv stand & waited. Got the Center delivered yesterday & finally wired them all up & did the auto-calibration with my AVR. I love them! I hope to eventually upgrade my Rears to either the RB-41II or RS-41II's but really the Energy Rears don't sound half bad with them surprisingly. With being so happy with these RF-52II's, I can only imagine how well the larger of the series sound!