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Sold Individually... The ultimate home theater and digital music speaker for medium and large rooms. Boston BT Series set new performance standards for speakers designed for use in A/V cabinetry or the front theater stage. Coupled with appropriate amplification BT systems are capable of delivering massive output typically associated with commercial movie theater or concert hall performances. From explosive music and pounding effects to the most artistic texturing and softest whispers BT’s extraordinary power handling and sensitivity allow extreme audio levels while preserving the subtlest details. All without the enormous speaker size and mass normally required for true big theater sound. Sound so detailed and dynamic it’s utterly stunning. Clear and uncolored across the entire audio spectrum. This is the award-winning true-to-the original performance known as the Boston Sound. Every aspect of the BT1 has been thoroughly thought out. The height of the BT1 is a standard component size of 171/2" allowing easy installation into A/V cabinetry. Die-cast “finger pulls” positioned at the front of the speaker enclosure provide easy installation in tight cabinet spaces supplied neoprene pads prevent scratching and allow for smooth slide-in positioning of the speakers. All cable input terminals and switches are recessed at the rear of the speaker. The BT1’s midrange/tweeter baffle can rotate 360 degrees for horizontal or vertical placement in cabinetry—maintaining the proper sonic vertical alignment of the mid-range and tweeter. The baffle may also be angled for more accurate imaging when the speaker is far off-axis. Made from ridged die-cast aluminum the baffle’s thermal mass provides tremendous heat dissipation for the midrange and tweeter improving power handling and reliability. The BT1 uses Boston’s 1-inch VR® high-output aluminum-dome tweeter and 4½-inch neodymium midrange with 1½”-inch voice coil. An 8-inch woofer using a 1 ½-inch voice coil neodymium magnet and cast aluminum basket provides powerful bass. This driver compliment delivers an astounding 220 watts power handling with 93dB sensitivity. The BT1 will live behind a perforated video screen or cabinet grille cloth in most installations. It features a Screen Compensation Switch to accommodate installation in this environment. A Flush Mount Switch can compensate for response anomalies caused by placement issues found in some theater stages and A/V cabinets. It also comes with full-coverage metal grilles for bookshelf or speaker stand placement. High-output L/C/R and surround speaker can handle up to 220 watts 8" cast Neo magnet woofer with 1-1/2" voice coil 4-1/2" Neo magnet midrange with 1-1/2" voice coil 1" VRH.O.™ aluminum dome tweeter with AMD™ M/T baffle rotates to maintain sonic alignment of drivers for better imaging Cast M/T baffle acts as a heatsink for higher power handling Die-cast "finger pulls" allow easy installation in tight spaces Recommended Amplifier Power 20-220 watts Nominal Impedance 6 ohms Frequency Response (±3dB) 65Hz-22kHz Bass Unit 8" (200mm) cast Neo magnet 1-1/2" voice coil Crossover Frequency 500 and 3200kHz Dimensions (HxWxD) 17-1/2 x 10 x 9-7/16" (445 x 254 x 240mm) w/grille Finish Black Sensitivity (1 watt (2.83v) at 1m) 93dB Midrange 4-1/2" (115mm) cast Neo magnet 1-1/2" voice coil Tweeter 1" VRH.O.&trade aluminum dome tweeter with AMD&trade Minimize