Specifications System Type : 3-way system, upper chamber-acoustic suspension, subwoofer chamber vented Drivers : 1' Fluid cooled neodymium magnet structure tweeter with NHT's proprietary aluminum heat sink. Mid-Woofer 6.5" polypropylene, high excursion. Woofer 8" polypropylene, long throw. Magnetically Shielded: Yes, except 8" woofer. Frequency Response : 31Hz- 22kHz +/- 3dB Crossover Frequency: 2.6kHz, 135Hz Sensitivity: 86dB (2.83V at 1M) Impedance : 8 ohms nominal Inputs : 5-way binding posts Recommended: Amplifier Power Minimum 15 watts/ch Maximum 200 watts/ch Dimensions : 38"H x 8"W x 12"D Weight : 47.5 lbs. each Finish : Black high gloss piano lacquer http://www.nhthifi.com/ServiceCenter/ST4
