Protecting The Speaker Cord; Technical Information - Bose Free Space 51 Owner's Manual

Protecting the speaker cord

Technical Information

The bare ends of the speaker cord can be affected by exposure to the elements. This is espe-
cially 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 com-
monly 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.
Protective features
• Environmentally resistant hardware
Driver complement
• One 4.5" (11.4 cm) environmental driver per speaker
Color
• Green
Dimensions
1
• 14 / " (36.8 cm) diameter, 15" (38.1 cm) height
2
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
2
18 (0.82 mm )
2
16 (1.3 mm )
2
14 (2.1 mm )
12 (3.3 mm 2 )
Use direct-burial cable for outdoor installations.
Length
20 ft (6 m) maximum
30 ft (9 m) maximum
50 ft (15 m) maximum
80 ft (24 m) maximum
Reference
9