The Prime Bookshelf speakers are sonic overachievers on all levels. Stunningly dynamic, pinpoint accurate and utterly transparent, they deftly serve as reference monitor loudspeakers in a two-channel system, or as high performance front, center, or side/rear surround speakers in a multi-channel home theater. Borrowing engineering and design cues from the acclaimed Ultra Series and embodying all the traits of a truly high-end speaker, the Prime Bookshelf speakers convey accurate spatial imaging, throw an expansive soundstage and deliver uncompromising fidelity throughout the frequency spectrum. The effortless low frequency extension, commanding but detailed midrange and airy, unveiled highs far exceed expectations of other speakers in its class. Even the cabinet geometry and internal bracing are optimized for uncompromised audio playback and complemented by stunning piano gloss and black ash finishes. Frequency Response / Acoustic Data: Rated bandwidth: 48 Hz-25 kHz (±3 dB) Nominal impedance: 8 ohms. Sensitivity: 87 dB (2.83V @ 1 meter full-space, 300-3kHz) Recommended amplifier power: 20-150 watts. Speaker Specs: Bookshelf Loudspeaker Black ash and piano gloss black finish options Single set of 5-way binding posts 1.7” wide-flared rear-firing port Cloth grille with pin/cup retention system Elastomer stick-on bumper feet (adds 3mm to height) Cabinet Dimensions: 13.2" (H) X 8" (W) X 9.4" (D) Overall Dimensions: 13.3" (H) X 8" (W) X 10.3" (D) (includes grille and bumper feet) Shipped Dimensions-2 Pack: 17.6" (H) X 22.4" (W) X 14.4” (D) Weight: 15.5 pounds Shipped Weight-2 Pack: 34.7 pounds Driver Specs: 1” Aluminum Dome Tweeter: FEA-optimized diffuser for airy and unveiled presentation Aluminum dome for exceptional transient response 6.5” Woofers: Long stroke motor and suspension for high output Polypropylene cone for excellent stiffness/mass ratio and pistonic behavior Aluminum shorting ring to reduce gap inductance, lower distortion, and enhance high frequency response Cast ABS-fiberglass composite basket ensures precision component alignment and excellent thermal transfer Vented voice coil former minimizes air compression artifacts Crossover & Cabinet Specs: Crossover: 2-way crossover with premium-grade capacitors, air-core inductors and heavy-trace printed circuit boards Crossover network delivers outstanding phase coherency and time domain behavior Tweeter-to-woofer crossover: 2.3 kHz (12 dB/octave slopes) Cabinet: Acoustically transparent and FEA optimized grilles minimize diffraction FEA-optimized cabinet and bracing eliminates resonances Chamfered front baffle and flush-mounted drivers reduce edge diffraction and improved on-axis high frequency response
