INTELLIGIBLE EMERGENCY NOTIFICATION
for tunnels and enclosed linear spaces
The acoustic conditions within road tunnels are extremely challenging - highly reflective surfaces and very high background noise levels. Exhaust gases, road treatment chemicals, and fluctuations in moisture levels also contribute to a difficult and corrosive environment for the equipment.
These conditions require a loudspeaker that projects highly focused sound directed toward the intended listening plane as much as possible, while still being incredibly durable. The Community TT-1020 road tunnel horn has been specifically designed with these factors in mind.
The TT-1020 utilizes optimized horn geometry and a special version of Community's proprietary M200 high power voice band driver, engineered to provide accurate signal reproduction with very low distortion. This results in high intelligibility at the elevated sound pressure levels necessary to overcome the high ambient noise and challenging acoustic conditions of road tunnels.
The driver's inert materials, combined with the horn's fire-resistant fiberglass construction and 316 stainless steel external hardware, make the entire device resistant to potentially caustic environments. The TT-1020 has an IEC 60529 IP66 rating and IEC 60695-11-10:2013 V-0 classification. Customers can order the 100V system configured for 50W or 100W operation.
Specifically designed for road tunnel and similar applications
Reliable performance and longer life in demanding environments
Low distortion voice band driver
Durable fire-resistant fiberglass construction
Easy to install and maintain, resulting in lower labor costs
Purpose-Designed Voice Band Driver
High temperature non-metallic diaphragm
Extremely resistant to corrosive environments
More suitable mechanical and electrical capabilities than high frequency compression drivers
TT-1020 PHYSICAL INFORMATION
H x W x D
483 x 877 x 1362 mm
(19.0" x 34.5" x 53.6")
24 kg (53 lbs) loudspeaker and mounting brackets
Loudspeaker: Hand-laminated multilayer
fiberglass with black gelcoat on exterior surfaces
Powder-coated perforated stainless steel backed with hydrophobic (treated) acoustic fabric
Note: Tunnel horn is shown with the mounting brackets.