Pioneer Elite TZ-F700 product page I have used these for approx 9 months. Produces lots of sound, each tower has a built in powered sub. Too much sound for my apartment. Will sell for $650 OBO. I prefer to sell in the Rochester, NY area as these would be quite difficult to ship. Any questions, please let me know. These are in excllent condition. Only minor flaw is that one of the pegs on the grill on one of the speakers has broken off but the grill stays in place fine. Frequency Response: 25 - 20,000 Hz Sensitivity: 92dB spl 1m/2.83V (anechoic conditions) Impedance: Nominal 8 ohms Maximum Output: 112 dB spl Recommended Amplifier Power: 10 - 150W Integral Woofer Amplifier: 300W PSBASH Technology Drivers: Woofer: 12 inch shielded high efficiency Mid Bass: 6.5 inch shielded high efficiency Midrange/Tweeter: IRIS compound array Shipping Weight: 60 lbs Dimensions: H 51.25" D 21.36" W (at base) 15.75" (cabinet) 8"