Five-way, reflex-loaded, magnetically shielded, floorstanding loudspeaker.
Drive-units: 0.75" (19mm) titanium-dome supertweeter; coincident (Uni-Q) 1" (25mm) titanium-dome tweeter and 6.5" (165mm) polypropylene copolymer-cone upper-midrange unit; 10" (250mm) paper-cone lower-midrange unit; two 10" (250mm) fiber-reinforced paper-cone woofers.
Crossover frequencies: 120Hz, 400Hz, 2.7kHz, and 15kHz, 24dB/octave acoustic slopes.
Frequency response: 40Hz-55kHz, ±3dB, 15 degrees horizontally off-axis.
Sensitivity: 91dB/2.83V/m.
Nominal impedance: 8 ohms (3.2 ohms minimum).
Recommended power: 50-400Wpc. Maximum output level: 117dB.
Dimensions: 50.7" (1290mm) H by 15.7" (400mm) W by 27" (685mm) D.
Weight: 145 lbs (66kg) each.
Finishes: Black Ash, Maple, or Cherry veneer.