TOA / F-2851C

The TOA F-2851C is a ceiling-mounted speaker system that achieves a wide coverage area thanks to its unique acoustic structure. It supports both high and low impedance, making it suitable for installation in a variety of sound systems. It provides consistent sound quality, regardless of whether it is directly below the speaker.

■Speaker System
■Wide Directivity Ceiling-Mounted
■16cm 2-Way
■180W/8Ω
■High-Impedance 100V Line: 170Ω (60W), 330Ω (30W), 670Ω (15W), 3.3kΩ (3W)

■Enclosure Type
Bass-Reflex
■Rated Input Power
60W (High-Impedance)
■Power Rating
Continuous Pink Noise: 90W (8Ω)
Continuous Program: 180W (8Ω)
■Rated Impedance
High-Impedance 100V Line: 170Ω (60W), 330Ω (30W), 670Ω (15W), 3.3kΩ (3W)
8Ω
■Output Sound Pressure Level
91dB (1W, 1 m)
■Frequency Response
60 Hz to 20 kHz (-10 dB), 45 Hz to 20 kHz (-20 dB)
Installed in a semi-free sound field (measured when mounted in the center of the ceiling)
■Speakers Used
High-Frequency: Dome type, Low-Frequency: 16 cm cone type
■Speaker Type
Class L (92 dB(A) or higher when measured with the second signal of the voice alarm sound according to the Fire Service Act Enforcement Regulations)
■Sound Power Level
91 dB
■Directivity Classification
X (0° to 20°: Q=7.2, 20° to 40°: Q=3.1, 40° to 60°: Q=1.5, 60° to 90°: Q=0.8)
■Mounting Hole Dimensions
φ250 mm (Maximum Panel Thickness: 37 mm)
■Input Terminals
Detachable screw terminals, two each of (+) and (-) (for bridging wiring)
■Compatible Wire
Solid wire: φ0.5 to φ1.6 mm (equivalent to AWG 24-14), Stranded wire: 0.2 to 2.5 mm (equivalent to AWG 24-14)2
■Operating Temperature Range
-10°C to +50°C
■Finish
Enclosure: Rolled steel plate, plated
Body: Flame-retardant ABS resin (resin material flame retardant grade: UL94 V-0 equivalent), black (similar to Munsell N1.0)
Frame: Flame-retardant ABS resin (resin material flame retardant grade: UL94 V-0 equivalent), off-white (similar to Munsell N9.5), painted
Punched Net: Rolled steel plate, off-white (similar to Munsell N9.5), painted
■Dimensions
φ280 x 227 (D) mm
■Weight
5.1 kg (including panel and ceiling reinforcement bracket)
■Accessories
Panel...1, Ceiling reinforcement bracket...1, Safety wire...1, Template...1
■Sold separately
Speaker mounting brackets: HY-AH1, HY-TB1