TOA / TU-750M

The TOA TU-750M is a driver unit for mounting optional horns (TH-750, TH-760, DH-110, DH-120, DH-40). It boasts clarity suitable for public relations and announcements, and uses inch threads for the connecting screws. The exterior metal parts are made of aluminum with a powder-coated finish, and the screws are stainless steel, providing excellent weather resistance.

■Type: Driver and transformer included

■Compatible horns
TH-750, TH-760, DH-110, DH-120, DH-40
■Rated input power
50 W
■Rated impedance
200 Ω (50 W), 330 Ω (30 W), 670 Ω (15 W)
■Output sound pressure level
110 dB (1 W, 1 m) (using a JIS C 5504 standard horn)
■Frequency response
150 Hz to 6 kHz (using a JIS C 5504 standard horn)
■Speaker type
Class L (92 dB(A) or higher measured with the second signal of the voice alarm sound according to the Fire Service Enforcement Regulations)
(Combination of TH-750 and TH-760)
■Acoustic power level
108 dB (1 W) (Combination of either TH-750 or TH-760)
■Directivity Classification
N (0° to less than 15°: Q=20, 15° to less than 30°: Q=4, 30° to less than 60°: Q=0.5, 60° to less than 90°: Q=0.3)
(Combination of either TH-750 or TH-760)
■Connection Thread
JIS C 5504 Class 1 (Inch Thread)
■Speaker Cord
φ6 mm 2-core cabtyre cord (Length 60 cm)
■Operating Temperature Range
-20°C to +55°C °C (no condensation)
■Dustproof and waterproof
IP65 (in combination with TH-750 and TH-760)
■Finish
Top cover: Aluminum, gray (approximate Munsell N4.5 color), powder-coated
Transformer case: ABS resin, gray (approximate Munsell N4.5 color)
Screws: Stainless steel
■Dimensions
φ139 x 149 (D) mm
■Weight
2.7 kg
■Other
Complies with JIS C 5504 (Horn Speaker)
■Optional Accessories
Unit Cover: UC-200A

*Do not install directly on locations subject to particularly large vibrations (such as the steel pillars of a ski lift). Also, do not use in environments prone to oil. This may cause deterioration of the mounting surface, resulting in accidents such as falls.

*When combined with TH-750 and TH-760, this product meets the Japan Fire Equipment Inspection Association's certification and Ministry of Land, Infrastructure, Transport and Tourism specifications.

(When combined with the DH-110, DH-120, or DH-40, this product cannot be used as an Emergency Broadcast Equipment Committee-certified product.)