TOA / CM-1830AT Ceiling speaker

The TOA CM-1830AT is a ceiling-mounted speaker that allows you to select the speaker panel (sold separately) that best suits your installation environment. The plug-in connector allows for one-touch wiring, allowing for both forward and branch wiring. The ATT circuit, which allows volume adjustment in five stages, uses a transformer, so the attenuation is constant regardless of input, with almost no attenuation during emergency broadcasts.

■Ceiling Speaker
■12cm
■3W/1W
■With Volume Control
■1 Unit

This is a ceiling-mounted speaker system. You can select the speaker panel (sold separately) that best suits your installation environment. The spring catch system allows for easy installation by simply hooking the panel. The plug-in connector allows for one-touch wiring, allowing for both forward and branch wiring. The ATT circuit uses a transformer, ensuring constant attenuation regardless of input, with almost no attenuation during emergency broadcasts. Volume can be adjusted in five steps. It can also be used in system ceilings.

■Rated Input
3 W
■Rated Impedance
3.3 kΩ (3 W), 10 kΩ (1 W)
■Output Sound Pressure Level
93 dB (1 W, 1 m, 600 Hz to 6 kHz, pink noise)
■Frequency Response
100 Hz to 18 kHz (peak at -20 dB)
■Speaker Type
12 cm cone type
■Speaker Type
Class L (92 dB(A) or higher when measured with the second signal of the voice alarm according to the Fire Service Act Enforcement Regulations)
■Sound Power Level
93 dB (1 W)
■Directivity Classification
W (0° to 30°: Q = 5, 30° to 60°: Q = 3, 60° to 90°: Q = 0.8)
■Volume Control
3 W/1 W Type (Factory-set to 1 W)
0 dB, -6 dB, -12 dB, -18 dB dB, rms
■Mounting Hole Dimensions
φ150 mm (Maximum Ceiling Thickness: 50 mm)
■Speaker Panel Mounting Method
Spring-catch system (Prevents speaker panel from falling off)
■Compatible Wire
600 V vinyl-insulated wire (IV wire, HIV wire), solid copper wire: φ0.8 to φ1.6 mm
■Speaker Input Terminal
One-touch plug-in connector (supports bridging and branching wiring)
■Operating Temperature Range
-10°C to +50°C
■Other
Complies with JIS C 5532 (Speakers for Audio Systems)
■Finish
Case: Flame-retardant high-impact polystyrene resin (resin material flame-retardant grade: UL94 V-0 equivalent)
Black (approximate Munsell N1.0 color)
■Dimensions
215 (W) x 134 (H) x 80 (D) mm
■Weight
700 g
■Compatible Panels
CP-183A, CP-183B, CP-183W, CP-184A, CP-189A, CP-189W