Bose model 1b manual

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1 PROPRIETARY INFORMATION THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF BOSE ® CORPORATION WHICH IS BEING FURNISHED ONLY FOR THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR USED FOR ANY OTHER PURPOSE. TABLE OF CONTENTS Specifications ................................................................................................................................... 1 Product Description ......................................................................................................................... 2 Disassembly/Assembly Procedures .............................................................................................. 3 Test Procedures ............................................................................................................................... 4 Figure 1. Test Setup Diagram ......................................................................................................... 4 Figure 2. Crossover Top Side and Etch Layout ............................................................................... 5 Figure 3. FreeSpace ® Model 1B Acoustimass ® Module Schematic Diagram .................................. 5 Figure 4. FreeSpace Model 1B Acoustimass Module Assembly Diagram ...................................... 6 Part List .......................................................................................................................................... 7-8 FreeSpace Model 1B Acoustimass Module (Per Figure 4) ........................................................... 7 Figure 5. FreeSpace Model 1B Acoustimass Bass Module Rear Panel Label ............................... 7 FreeSpace Model 1B Acoustimass Module Crossover Assembly (Per Figure 6) ...................... 8 Figure 6. FreeSpace Model 1B Acoustimass Module Crossover Assembly ................................... 8 Packing List ...................................................................................................................................... 9 FreeSpace Model 1B Acoustimass Module (Per Figure 7) ........................................................... 9 Figure 7. FreeSpace Model 1B Acoustimass Module Packing Diagram .......................................... 9 SPECIFICATIONS External Dimensions: Bass Module: 19" x 14" x 7.5" Packed System: 26.2" x 19.8" x 10.6" Weight: Bass Module: 18.7 lb Transducer Complement: 2 - 5 1/4" Woofers Power Handling: 100 Watts per channel Usable Frequency Range: Bass Box: 55 Hz to 200 Hz Sensitivity: Pink Noise: 76dB-spl, 1 Watt @ 1 Meter IEC Noise: 78.6dB-spl, 1 Watt @ 1 Meter

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2 PRODUCT DESCRIPTION The FreeSpace ® Model 1B Acoustimass ® Module is a passive bass unit with a crossover at 200 Hz. The crossover will feed four (two per channel) 8 Ω impedance, or eight (four per channel) 4 Ω impedance FreeSpace Model 6 loudspeakers. It offers several advantages over a powered bass box system. - The FreeSpace Model 1B Acoustimass Module does not require the wiring of AC mains during installation. This can represent a significant savings in installation costs. - The FreeSpace Model 1B Acoustimass Module is designed to be used with the AMPlus-„¢ Series Amplifiers. It is able to take advantage of all of the features of the amplifiers, such as Opti-voice ® paging, Dynamic EQ, Page Vectoring, Dynamic Compensation, and source selection. - The FreeSpace Model 1B Acoustimass Module can also be used with the the Model 8, Model 32, and Model 25 loudspeakers to form a complete extended bandwidth system.