The TU-660M is a highly intelligible driver unit suited to public address announcement applications.Use the driver unit in combination with a suitable horn (option).Its powder-coated finish and stainless steel screws ensure the unit's weatherproof capability.Also employing a newly developed ring diaphragm ensures the unit's high frequency characteristics.


Applicable Horns TH-650, TH-660
Rated Input 60 W
Line Voltage 100 V line or 70 V line
Rated Impedance 100 V line: 170 Ω (60 W), 330 Ω (30 W), 670 Ω (15 W)
70 V line: 83 Ω (60 W), 170 Ω (30 W), 330 Ω (15 W), 670 Ω (7.5 W)
Sensitivity 110 dB (1 W, 1 m) (When operated with JIS C 5504 standard horn.)
Frequency Response 150 Hz - 8 kHz (When operated with JIS C 5504 standard horn.)
Dust/Water Protection IP65 (When a driver is operated with a horn.)
Horn Coupling 1 - 3/8 18 threads (inch screw)
Polarity Hot: Black, Com: White
Operating Temperature -20 ℃ to +55 ℃ (-4 ゜F to +131 ゜F) (no condensation)
Finish Flange: Aluminum, gray, powder coating
Rear cover: ABS resin, gray
Screws: Stainless steel
Speaker cable: Polyvinyl chloride insulated cabtyre cable
(6 mm (0.24") in diameter, 600 mm (23.62") in length)
Dimensions φ139 × 151 (D) mm (φ5.47" × 5.94")
Weight 2.7 kg (5.95 lb)
Option Driver unit cover: UC-200A