ULTRA EVOLUTION BOOKSHELF

• Frequency Response: 40 Hz-40 kHz (+/-3 dB).
• Nominal impedance: 6 ohms.

• Sensitivity: 87dB (2.83V @ 1 meter full-space, 300Hz – 3kHz)
• Recommended amplifier power: 20 – 150 watts

• Bookshelf Loudspeaker
• Piano gloss black, piano gloss white, real black oak veneer finish options
• Dual gold-plated 5-way binding posts
• 2” wide-flared rear-firing port 
• Cloth grille with magnetic retention system
• Elastomer stick-on bumper feet

• Cabinet Dimensions: 14.88” (H) x 8.66” (W) x 11.25” (D) / 378mm (H) x 220mm (W) x 285.7mm (D)
• Overall Dimensions: 11.14” (H) x 8.66” (W) x 11.64” (D) / 382mm (H) x 220mm (W) x 295.6mm (D) (includes grille and SVS Multi-Angle Wall Bracket)
• Shipped Dimensions (Pair): 23.9” (H) x 19.1” (W) x 16.4” (D) / 607mm (H) x 485mm (W) x 417mm (D)
• Weight Unboxed: 18.8 pounds / 8.6 kgs
• Shipped Weight: 40.7 pounds / 18.9 kgs

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 further beyond human hearing, and delivering best-in-class fidelity, linearity, and transient response.
• Silver tinsel leads for optimal signal transfer and power handling.

6.5” Woofer:

• 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 precise alignment of critical components and maximize thermal dissipation.
• Vented aluminum voice coil former to maximize thermal control while minimizing air compression artifacts at high drive levels.

Crossover:

• 2-way crossover with premium-grade capacitors, inductors, resistors, and heavy-trace printed circuit board
• Tweeter-to-Woofer crossover: 1.8 kHz

Cabinet:

• Time-aligned cabinet geometry introduces microsecond-level time delays between the drivers, ensuring that the effective-acoustic-center of each driver is equidistant from the listener.   The result is improved linearity and directionality throughout the crossover frequencies, and a more accurate soundstage.
• Chamfered front baffle and flush-mounted drivers reduce edge diffraction and improve on-axis and off-axis high-frequency response.
• Extra-thick 1” (25mm) driver baffle ensures a rigid, resonance-free mounting for all drivers.
• FEA-optimized ¾” (18mm) cabinet construction, bracing, and acoustic insulation eliminate acoustic and structural resonances, ensuring an inert enclosure and an uncolored response, even at the highest drive levels.