Frequency Response / Acoustic Data: Frequency Response: 27Hz to 40kHz (+/-3 dB) Nominal Impedance: 6 ohms Sensitivity: 88dB (2.83V @ 1 meter full-space, 300Hz – 3kHz) Recommended amplifier power: 20 – 300 watts Speaker Specs: Floor-standing Tower Loudspeaker Finish options: Piano gloss black, piano gloss white, real black oak veneer Dual gold-plated 5-way binding posts Dual 2.5” wide-flared rear-firing ports Cloth grille with magnetic retention system Elastomer screw-in feet: adjustable for level Spiked metal screw-in feet: adjustable for level Cabinet Dimensions: 46.54” (H) x 9.8” (W) x 17.3” (D) / 1182mm (H) x 249mm (W) x 439.3mm (D) Overall Dimensions: 47.13” (H) x 9.8” (W) x 17.3” (D) / 1197mm (H) x 249mm (W) x 439.3mm (D) (includes grille, feet, and binding posts) Weight (Packaged): 80.5 pounds / 36.5 kgs Weight (Unboxed): 69.7 pounds / 31.6 kgs Driver Specs: 1” Diamond Coated Tweeter: – FEA-optimized Organic Cell Lattice Diffuser for airy, unveiled highs and pristine clarity – Cutting-edge vapor-deposition grows a hyper-rigid diamond-like coating on an aircraft-grade aluminum dome, pushing high-frequency extension beyond human hearing – Delivers best-in-class fidelity, linearity, and transient response – Silver tinsel for optimal signal transfer and power handling Dual 4.5” Midrange Drivers: – Composite glass-fiber cone with excellent stiffness/mass ratio for high sensitivity and pistonic behavior beyond passband – Precision-cast aluminum-alloy baskets ensure precise alignment and thermal dissipation – Vented Kapton voice coil former for lightweight, excellent dynamics, and transient response Quad 6.5” Woofers: – Long stroke motor and suspension for high output – Composite glass-fiber cone with excellent stiffness/mass ratio for high sensitivity and pistonic behavior beyond passband – Precision-cast aluminum-alloy baskets ensure alignment and thermal dissipation – Vented aluminum voice coil former for thermal control and minimized air compression artifacts at high drive levels Crossover & Cabinet Specs: Crossover: – 3-way crossover with premium-grade capacitors, inductors, resistors, and heavy-trace printed circuit board – Tweeter-to-Midrange crossover: 1.9 kHz – Midrange-to-Woofer crossover: 160 Hz Cabinet: Acoustically Centered Time Alignment architecture: – Rotational-symmetry orientation for midrange and woofer arrays around the tweeter, ensuring coherent acoustic image – Microsecond-level time delays between drivers for improved linearity and directionality throughout crossover frequencies – Quad 6.5” woofers in Force-Balanced Opposed Array for deep, accurate bass and net-zero vibration force – Dual 4.5” midrange drivers share a dedicated acoustic-suspension enclosure, symmetrical around the tweeter – Chamfered front baffle and flush-mounted drivers reduce edge diffraction for improved high-frequency response – Extra-thick 1” (25mm) driver baffles for rigid, resonance-free mounting – FEA-optimized ¾” (18mm) cabinet construction with extensive bracing and acoustic insulation for inert enclosure and uncolored response at high drive levels