Bedienungsanleitung Boston Acoustics CR75

Boston Acoustics CR75



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Boston Acoustics 

  • Sound System Boston Acoustics CR75

  • Vorschau Boston Acoustics CR75 Handbuch:
    2 CR75 CR85 Frequency Response (±3dB) 52–20,000Hz 48–20,000Hz Recommended Amplifier Power 15–100 watts 15–125 watts Nominal Impedance 8 ohms 8 ohms Sensitivity [1 watt (2.83v) at 1m] 89dB 90dB Bass Unit 61⁄2" (165mm) copolymer 7" (180mm) DCD™ copolymer Tweeter 1" (25mm) Kortec™ 1" (25mm) Kortec™ Crossover Frequency 2500Hz 2500Hz Dimensions (HxWxD) 121⁄2 x 71⁄2 x 91⁄2" (318 x 191 x 241mm) 15 x 81⁄2 x 111⁄2" (381 x 216 x 292mm) Weight 12 lbs (5.4kg) 163⁄4 lbs (7.6kg) Specifications CR55 CR65 Frequency Response (±3dB) 80–20,000Hz 65–20,000Hz Recommended Amplifier Power 10–85 watts 15–100 watts Nominal Impedance 8 ohms 8 ohms Sensitivity [1 watt (2.83v) at 1m] 88dB 88dB Bass Unit 4 1⁄2" (115mm) copolymer 5 1⁄4" (135mm) copolymer Tweeter 3⁄4" (20mm) dome 3⁄4" (20mm) dome Crossover Frequency 4200Hz 4200Hz Dimensions (HxWxD) 91⁄4 x 53 ⁄8 x 6" (235 x 143 x 152mm) 101⁄8 x 63⁄8 x 77⁄8" (257 x 162 x 200mm) Weight 53⁄4 lbs (2.6kg) 9 lbs (4kg) 3 Description Continuing in the tradition of our critically acclaimed Compact Reference series, the second generation CR55, CR65, CR75 and CR85 are compact, versatile, high performance bookshelf speakers designed to deliver accurate, natural reproduction. Special care has been taken to optimize the speakers’ components for maximum performance: The bass units utilize phase plugs that conduct heat away from the voice coil, thus increasing power handling and maximizing output. The woofer cones and surround geometry were designed and optimized with Boston’s Finite Element Analysis (FEA) computer modeling technology, for strong bass and smooth midrange. High frequencies in the CR75 and CR85 are handled by Boston’s exclusive 1-inch (25mm) Kortec tweeter mounted in an innovative new wide dispersion projection tweeter baffle. This remarkable driver produces an extremely smooth, flat response well beyond the audible range. An aluminum heatsink attached to the tweeter’s backplate dissipates heat quickly and efficiently, assuring cool, trouble-free operation—even at very high power levels. All the drive units are designed at Boston’s Peabody, Massachusetts facility using state-of-the-art computer-design programs, and are built on Boston’s proprietary production lines to an incredible ±1dB—perhaps the industry’s tightest tolerance. The CR65, CR75 and CR85 feature MagnaGuard® magnetic shielding for safe placement near any sized television set. The drivers are positioned very closely to each other for smooth, uniform radiation in both the horizontal and vertical planes. Within the cabinets are specially tapered b .....
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