|At Plasa 2005 in London, Martin Audio is to introduce a range of high performance ceiling speakers designed to comply with UL2043, UL1480, BS5839 pt8 and IEC60849/EN60849. All of these provide exceptionally high quality audio for the application and have perforated steel grilles, UL94 VO ABS baffles, thermal fuses, and steel back cans. Thermal fuses are included to prevent the possibility of a speaker exposed to fire creating a short circuit that could damage the amplifier. With this other alarm, speakers on the same circuit will still work.
The new range features rising clamp connectors that accept up to 2.5 mm˛ conductors and are fireproofed by a steel cover plate with a clamped cable entry.
Ceiling Series speakers are available in 40W 4" (100mm), 75W 6.5" (165mm) and 125W 8" (200mm) versions. All are 16ohms with switched 100/70V line transformers that have excellent low frequency characteristics.
All models are 2-way designs using soft dome tweeters for the widest dispersion and best off-axis performance. The exceptionally wide dispersion of 4" and 6.5" models makes them suitable for low ceiling areas. New Ceiling Series models include the C4.8T, C6.8T, C8.1T, C10.1, C10.1T and CS10.