Bose Free Space 51 Outdoor Multilingual Owners Guide - Page 10
Protecting the speaker cord, Technical Information
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Reference Protecting the speaker cord The bare ends of the speaker cord can be affected by exposure to the elements. This is especially true of salt water or water containing chemicals such as chlorine or fertilizer. You may use a silicone caulking material, such as RTV adhesive, to protect the connections. It is commonly available at hardware stores. If you do use caulking, apply it only after the cords are connected. Check the connections annually, and reapply as needed. Technical Information Protective features • Environmentally resistant hardware Driver complement • One 4.5" (11.4 cm) environmental driver per speaker Color • Green Dimensions • 141/2" (36.8 cm) diameter, 15" (38.1 cm) height Weight • 12 lb (5.4 kg) each Compatibility • Compatible with amplifiers or receivers rated 4 to 8 ohms • 50W IEC continuous power-handling compatible with receivers and amplifiers rated 10-100W Environmental capabilities Designed to withstand: • Salt fog, sun, high humidity (rain and snow) • Temperature extremes (-40°F to 158°F; -40°C to 70°C) • Permanent outdoor installation Cord recommendations Based on maximum frequency response deviation of ±0.5 dB Gauge Length 18 (0.82 mm2) 20 ft (6 m) maximum 16 (1.3 mm2) 30 ft (9 m) maximum 14 (2.1 mm2) 50 ft (15 m) maximum 12 (3.3 mm2) 80 ft (24 m) maximum Use direct-burial cable for outdoor installations. 9