Specifications Speaker complement:Two 10" (254 mm) woofers;Two 3½" (89 mm) Convex Diaphragm mid-range units;Two 1" (25 mm) Convex Diaphragm tweeters
Crossover frequencies: 350 and 3,750 Hz Crossover network: LC half-section at both crossover frequencies. Air-core chokes and non-polar computer-grade capacitors are used. Three-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to concert-hall balance slope.
Impedance: 8 Ω nominal (7 Ω minimum at any setting of balance switch) Efficiency: better than 0,7% when placed at floor-wall intersection.
Minimum amplifier power: 30 watts per channel to produce 100 dB sound pressure level in most domestic room environments. Acoustic power output capability: 0,5 acoustic watt minimum , over full frequency range, with 70 watt peak input.
System resonance frequency: 45 Hz, nominal Effective system Q: 1.0. Low-frequency response -3 dB at 35,5 Hz, -6 dB at 29,5 Hz
Enclosure: Stabilized Radiation Loading sealed acoustic suspension design.Outside dimensions: 40" high by 19" wide by 10¾" front to back (1002 cm by 483 mm by 273 mm). Internal volume: 2,550 cubic inches (41,8 liters).Material: High density particle board veneered with walnut, oiled finish
Weight: 67 lbs (30,4 kg)Full Warranty for Five Years