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Frequency Response and Electro-Acoustic Data:
• Rated bandwidth: 30 Hz-25 kHz (+/-3 dB).
• Nominal impedance: 8 ohms.
• Sensitivity: 87 dB (2.83V @ 1 meter full-space, 300-3kHz). • Recommended amplifier power: 20-250 watts.
Loudspeaker Physical Description:
• Black ash and piano gloss black finish options. • 5-way binding posts.
• Dual 1.7” wide-flared rear-firing ports.
• Cloth grille with pin/cup retention system.
• Cabinet Dimensions: 36" (H) X 8" (W) X 10.8" (D).
• Overall Dimensions: 36.6" (H) X 8" (W) X 11.6" (D) (includes grille, feet and binding posts). • Weight Unboxed: 40.1 pounds.
Driver Array and Technical Highlights:
• 1" tweeter features FEA-optimized diffuser and aluminum dome.
• 4.5" midrange driver features polypropylene cone, aluminum shorting ring, cast ABS-fiberglass composite basket and vented voice coil former.
• Dual 6.5" woofers feature long stroke motor and suspension, polypropylene cone, aluminum shorting ring, cast ABS-fiberglass composite basket and vented voice coil former.
SoundMatch Crossover Network:
• 3.5-way crossover with premium-grade capacitors, air-core inductors and heavy-trace printed circuit boards.
• Tapered woofer array optimizes the transition to the midrange driver and reduces vertical axis lobing.
• Midrange-to-tweeter crossover: 2.1 kHz (12 dB/octave slopes).
• Top woofer (Combined Woofer) to midrange crossover frequency: 350 Hz (12 dB/octave slopes).
• Bottom woofer low pass frequency: 165 Hz (customized filter Q and slope).
Cabinet Construction Technical Highlights:
• Separate sealed midrange enclosure shifts standing waves beyond the driver pass band, improving sound quality.
• Separate woofer enclosures with optimized port tuning frequencies for smooth and accurate bass response.
• Acoustically transparent and FEA optimized grilles minimize diffraction.
• Chamfered front baffle and flush-mounted drivers reduce edge diffraction and improved on-axis high frequency response.
• FEA-optimized cabinet and bracing eliminates resonances.