Impedance change, Specifications, Installation – Toa CS-154U User Manual
Page 2: Connection

5. IMPEDANCE CHANGE
The input impedance is factory-preset to 670 Ω.
To change the impedance, change the rear
panel-mounted rotary switch position to the
desired impedance (wattage) using a standard
screwdriver.
Notes
• This speaker is designed to operate on a 70 V
or 100 V line. Do not connect it to the
amplifier's low impedance line.
• No sound is output when the switch is set to
the OFF position.
Caution
Never set the switch to "–" position for 100 V
line operation, as doing so may result in damage
to the speaker.
8. SPECIFICATIONS
* Impedance for 70 V line
Note
The design and specifications are subject to
change without notice for improvement.
10W 1kΩ
15W 670Ω
OFF
OFF
2.5W 2kΩ
70V LINE
100V LINE
5W 2kΩ
OFF
OFF
15W 330Ω
7.5W 670Ω
5W 1kΩ
Line Voltage
Imp.
70 V
100 V
15 W
–
330 Ω
7.5 W 15 W
670 Ω
5 W
10 W
1 kΩ
2.5 W
5 W
2 kΩ
Speaker Component
12 cm cone speaker
Rated Input
15 W
Impedance
(330 Ω)*, 670 Ω, 1 kΩ, 2 kΩ
Frequency Response
150 – 15,000 Hz
Sensitivity
97 dB (1 W, 1 m)
Finish
Body
ABS resin, off-white, paint
Bracket
Stainless steel
Net
Aluminum, gray, paint
Dimensions
366 (w) x 230 (h) x 272 (d) mm
Weight
2.8 kg
Ceiling surface
Wa
ll surface
• Be sure to direct the speaker
down towards the ground.
Otherwise, rain floods the
speaker, causing its failure.
• No mounting hardware such as
bolts and nuts is supplied with
the speaker.
Use commercial mounting
hardware appropriate for the
installation environment.
• Please install only with either
flexible conduit or flexible wiring.
7. INSTALLATION
[Mounting on the wall]
[Mounting under the eaves
or on the ceiling]
6. CONNECTION
Make the connections using marrets (wire nuts)
inside a UL Listed junction box.
Note
This product shall be installed in accordance with
the National Electrical Code, ANSI/NFPA 70.
UL Listed Junction Box
Marrets (wire nuts)
From Speaker
From Amplifier
(–)
(–)
(+)
(+)
Factory-preset values
533-06-111-6A
URL: http://www.toa.jp/