Imam
Mousa Kazim Holy Shrine in Kazmein Calls Loud and Clear with Community
Tehran-based audio specialists, Farasout Negar, has recently completed
the design and installation of a PA system for calling Muslims to prayer
at the Imam Mousa Kazim Holy Shrine in Kazmein, Iraq.
To
achieve 360-degree coverage and very high SPLs, Farasout Negar designed
a system based on sixteen Community RSH-462 exponential Focused Array™
horn systems. Each voice-range RSH-462 utilizes four Community M200
ferro fluid-cooled compression drivers mounted to a hand laminated,
reinforced composite fiber glass horn-array with a 60 degree horizontal
and 20 degree vertical coverage pattern. With a sensitivity of 117dB for
1W at 1 metre and a 750W program power handling capacity the RSH-462
provided the considerable SPL required.
Coverage
was achieved by mounting four RSH-462 in each of the Shrine’s four
minarets, at a height of 33 metres from the ground. Four Lab.gruppen
C28:4 four-channel power amplifiers are used to drive the Community
loudspeakers and system management is handled by an XTA DP446.
Although the loudspeakers are mounted in the minarets, they are open to
the full environmental conditions of Kazmein, so their all-weather
capability was another important consideration for Farasout Negar. The
one-piece, non-metallic diaphragm of the RSH-462 faces forward,
isolating the voice coil and magnetic structure of each driver from the
environment, providing the exceptional resistance to the effects of
humidity and dust needed.
Milad GhorbanNejad, Commercial manager of Farasout
Negar, commented, “We are very pleased with the sound levels, high
intelligibility and coverage we have achieved with the RSH-462
loudspeakers and the combination of Community, Lab.gruppen and XTA has
provided a system that ensures quality and long term reliability”.
|