TOA / BS-320T

The TOA BS-320T is a wall-mounted speaker with ATT technology that offers excellent clarity and is compatible with high-impedance sound systems.

■Resin Wall-Mounted Speaker
■Rated Impedance
3.3 kΩ (3 W), 5 kΩ (2 W), 10 kΩ (1 W)
■Volume Control

■Rated Input Power
3 W
■Rated Impedance
3.3 kΩ (3 W), 5 kΩ (2 W), 10 kΩ (1 W)
■Output Sound Pressure Level
91 dB (1 W, 1 m)
■Frequency Response
200 Hz to 18 kHz, -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)
■Acoustic Power Level
96 dB (1 m) W)
■Directivity Classification
W (0° to 30°: Q=5, 30° to 60°: Q=3, 60° to 90°: Q=0.8)
■Applicable Wire
600V vinyl-insulated wire (IV wire, HIV wire)
Solid wire (copper wire): φ0.8 to φ1.2 mm
Stranded wire (7-core copper wire): 0.75 to 1.25 mm2
■Wiring Method
One-touch plug-in connector (feed terminal, 2-branch type)
■Volume Control
1 W: OFF (off), 1 (-12 dB), 2 (-6 dB), 3 (0 dB)
2 W: OFF (off), 1 (-13 dB), 2 (-8 dB), 3 (0 dB)
3 W: OFF (off), 1 (-15 dB), 2 (-9 dB), 3 (0 dB)
■ Operating Temperature Range
-10°C to +50°C
■ Other
Complies with JIS C 5532 (Speakers for Sound Systems)
■ Finish
Case: ABS resin, off-white (approximate Munsell N9.5 color)
Back: Hardboard
■ Dimensions
173 (W) x 195 (H) x 101 (D) mm (excluding volume control)
■ Wall Mounting Dimensions
Case Front Mount: 184 mm
Double Hole Mount: 120 mm
■ Weight
810 g
■ Accessories
Main Unit Mounting Screws...4