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. 

TT-1020

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  

 

M200T

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 

1217mm

(47.9")

Mounting points

820mm

(32.3")

Mounting points

Top

483mm

(19.0")

877mm

(34.5")

Front

1362 mm

(53.6")

Sides

H x W x D 

483 x 877 x 1362 mm 

(19.0" x 34.5" x 53.6")

Unit Weight

24 kg (53 lbs) loudspeaker and mounting brackets

Enclosure/Finish

Loudspeaker: Hand-laminated multilayer

fiberglass with black gelcoat on exterior surfaces

Grille 

Powder-coated perforated stainless steel backed with hydrophobic (treated) acoustic fabric

Rear

Note: Tunnel horn is shown with the mounting brackets.

TT-1020 DESIGNED FOR:

© 2018 Community Professional Loudspeakers

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