The TH-660 is a speaker horn to be used in combination with an optional driver unit. Its powder-coated finish, and stainless steel screws ensure the unit’s weatherproof capability.

Applicable Drivers TU-631, TU-631M, TU-651, TU-651M
Sensitivity 110 dB (1 W, 1 m) (When operated with a driver.)
Frequency Response 200 Hz – 6 kHz (When operated with a driver.)
Dust/Water Protection IP65 (When operated with a driver.)
Driver Coupling 1 – 3/8 18 threads (inch screw)
Operating Temperature -20 ℃ to +55 ℃ (must be free from dew condensation)
Finish Horn flare and flange: Aluminum, off-white, powder coating
Reflector horn: ABS resin, off-white
Bracket holder: Aluminum, gray, powder coating
Bracket: Steel, gray, powder coating
Screws and boits: Stainless steel
Dimensions φ600 × 425 (D) mm
Weight 3.6 kg