Bose Professional: Pro Audio Equipment & Sound Systems
Owner's Manual for BOSE models including: FC108, FC108 Full Range Coaxial Point Source Loudspeaker, FC108, Full Range Coaxial Point Source Loudspeaker, Range Coaxial Point Source Loudspeaker, Coaxial Point Source Loudspeaker, Point Source Loudspeaker, Source Loudspeaker
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DocumentDocumentTECHNICAL DATA Forum FC108 full-range coaxial point-source loudspeaker Product Overview Forum FC108 is an 8-inch full-range coaxial point-source loudspeaker that delivers exceptional fidelity and output in a compact, install-friendly form factor. With a frequency range of 53 Hz20 kHz and 122 dB max peak SPL, Forum FC108 provides clear, impactful sound for small-to-mid installations. The design features a high-excursion coaxial driver and Beamwidth Matching Waveguide technology for consistent 110° × 60° coverage, ensuring even audio distribution across the space. The fully tuned passive crossover means no additional processing is required--just plug in and get excellent performance with any full-range signal. Designed for easy installation, Forum FC108 offers surprisingly high output from a compact enclosure, making it well-suited for a variety of installations--right out of the box. Key Features Fully tuned passive crossovers for excellent performance right out of the box High-excursion coaxial drivers deliver up to 122 dB max peak SPL Beamwidth Matching Waveguide technology for consistent 110° × 60° coverage Compact, rotatable cabinets with square grilles for flexible installation Robust cabinet construction for long-lasting durability Factory-optimized loudspeaker presets when combined with Bose Professional amplifiers and processors IP43-rated for indoor and protected outdoor environments Mounting options include U-bracket, surface-mount pan-and-tilt bracket, suspension rail, and optional eyebolt suspension Applications Retail / restaurants Houses of worship Performing arts Education Corporate Hospitality For additional specifications and application information, visit BoseProfessional.com. Specifications are subject to change. 06/2025 BoseProfessional.com 1 OF 4 TECHNICAL DATA Forum FC108 full-range coaxial point-source loudspeaker Technical Specifications SINGLE-LOUDSPEAKER PERFORMANCE Frequency Response (-3 dB) 1 Frequency Range (-10 dB) 1 Nominal Coverage Pattern AUDIO PERFORMANCE 2 Power Handling, Long-term Continuous 3 Power Handling, Peak 4 Sensitivity (SPL / 1 W @ 1 m) Calculated Maximum SPL @ 1 m, Continuous 5 Calculated Maximum SPL @ 1 m, Peak Crossover Loudspeaker EQ TRANSDUCERS Low Frequency High Frequency Nominal Impedance PHYSICAL Enclosure Material Finish Grille Logo Environmental 6 Connectors Suspension / Mounting Product Dimensions (height × width × depth) Net Weight, Single Loudspeaker Shipping Weight Package Contents Optional Accessories 75 Hz 17,000 Hz 53 Hz 20,000 Hz 110° horizontal × 60° vertical Passive Bi-amp 150 W 150 W (LF) + 20 W (HF) 1200 W 1200 W (LF) + 320 W (HF) 94 dB 94 dB 115 dB 116 dB 121 dB 122 dB Internal passive or external bi-amp. Use Bose Professional presets for optimal performance when bi-amplified. Bose Professional presets available 1 × 8.0 in (203 mm) woofer 1 × 1.7 in (43 mm) compression driver 8 , passive / 8 (LF) + 8 (HF), bi-amp Birch plywood 2-part spray polyurethane coating, black Perforated steel, powder-coated finish, black Rotatable IP43, protected-outdoor usage (1) Neutrik® speakON® NL4, (1) barrier strip (6) M10 threaded inserts (2 on top, 2 on bottom, 1 per side) (4) M8 threaded inserts (rear panel, for surface-mount pan-and-tilt bracket) (4) M6 threaded inserts (1 on top, 1 on bottom, 1 per side) (3) M8 threaded inserts (bottom, for external pole adapter) 318 mm × 318 mm × 279 mm (12.5 in × 12.5 in × 11.0 in) 12.7 kg (28.1 lb) 14.7 kg (32.3 lb) (1) Forum FC108, (1) installation guide Forum FC108 U-bracket, AMM suspension bracket, surface-mount panand-tilt bracket, AMUPOLEAT external pole adapter For additional specifications and application information, visit BoseProfessional.com. Specifications are subject to change. 06/2025 BoseProfessional.com 2 OF 4 TECHNICAL DATA Forum FC108 full-range coaxial point-source loudspeaker PRODUCT CODES Forum FC108 loudspeaker A00205-0100 FC108 MULTIPURPOSE LDSPKR Forum FC108 U-bracket A00508-0100 FC108,U-BRACKET,BLACK AMM suspension bracket 843344-0010 AMM SUSPENSION BRACKET AMUPOLEAT external pole adapter 893630-0100 KIT,AMU POLE CUP,BLK Surface-mount pan and tilt bracket, black 889687-0100 PAN & TILT BRACKET,BLK Surface-mount pan and tilt bracket, white 889687-0200 PAN & TILT BRACKET,WHT Footnotes 1. Frequency response and range measured in passive mode using Klippel Near Field Scanner (NFS) system. 2. AES transducer test and Bose Professional extended-lifecycle test, passive and bi-amplified. 3. Bose Professional extended-lifecycle test using pink noise filtered to meet IEC 268-5, 6-dB crest factor, 500-hour duration. 4. Bose Professional peak power test using 6-dB crest factor pink noise, 96-hour duration with recommended loudspeaker processing. 5. Maximum SPL calculated using sensitivity and power ratings, exclusive of power compression. Frequency Response 1 100 90 80 70 SPL (dB) 60 50 40 30 20 10 0 20 200 Beamwidth 360 Angle (degrees) 100 10 20 Horizontal Vertical 100 Frequency (Hz) 2000 1000 Frequency (Hz) 20000 10000 20000 For additional specifications and application information, visit BoseProfessional.com. Specifications are subject to change. 06/2025 BoseProfessional.com 3 OF 4 TECHNICAL DATA Forum FC108 full-range coaxial point-source loudspeaker Dimensions 6 Right View 7 225 [8.9] M10 threaded insert Front View (without grille) 318 [12.5] 318 [12.5] Top View M10 threaded insert ×2 296 [11.6] Rear View M8 threaded insert ×4 Bottom View 55 M10 threaded insert [2.2] ×2 170 [6.7] M8 threaded insert ×3 6. Dimensions are shown in millimeters over inches. 7. Dimensions also apply to opposite side. © 2025 Transom Post OpCo LLC. All rights reserved. Bose is a trademark of Bose Corporation. Neutrik and speakON are registered trademarks of Neutrik AG. All other trademarks are the property of their respective owners. For additional specifications and application information, visit BoseProfessional.com. Specifications are subject to change. 06/2025 BoseProfessional.com 4 OF 4