Ultra Evolution Bookshelf Specs
Frequency Response / Acoustic Data:
Frequency Response: 40Hz to 40kHz (+/-3 dB)
Nominal Impedance: 6 ohms
Sensitivity: 87dB (2.83V @ 1 meter full-space, 300Hz – 3kHz)
Recommended amplifier power: 20 – 150 watts
Speaker Specs:
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 ports
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: 15.04” (H) x 8.66” (W) x 11.64” (D) / 382mm (H) x 220mm (W) x 295.6mm (D) (includes grille, feet, and binding posts)
Shipped Dimensions (Pair): 23.9” (H) x 19.1” (W) x 16.4” (D) / 607mm (H) x 485mm (W) x 417mm (D)
Weight Packaged Pair: 40.7 pounds / 18.9 kgs
Weight Unboxed Each: 18.8 pounds / 8.6 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 carbon 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 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 pass-band.
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 & Cabinet Specs:
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.
