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A steel cover plate with a clamped cable entry protects the input
connector against fire in accordance with BS5839: Part 8, Section
10.3.
All models are fitted with a thermal fuse to prevent the loudspeaker
from short circuiting and disabling other loudspeakers in its group
under the influence of fire.
Model Drivers Dispersion
C4.8T 4” (100mm) LF 180deg
0.75” (19mm) HF
C6.8T 6.5” (165mm) LF 150deg
0.75” (19mm) HF
C8.1T 8” (200mm) LF 90deg
1” (25mm) HF
The exceptionally wide mid-high dispersion of the Martin Audio
C4.8T and C6.8T makes them particularly suitable for low ceilings.
Voltage & power settings
All models are 16ohms direct or via line transformers selected with a
baffle-mounted switch for 100V or 70V operation as follows:
Baffle switch Baffle switch location
(C6.8T shown)
Model 16ohm 100V operation 70V operation
C4.8T 40W 25W, 12.5W, 6W 25W, 12.5W, 6W, 3W
C6.8T 75W 40W, 20W, 10W 40W, 20W, 10W, 5W
C8.1T 125W 60W, 30W, 15W 60W, 30W, 15W, 7.5W
All material © 2007. Martin Audio Ltd. Subject to change without notice.