4. Insert the speaker in the ceiling hole taking care not to
touch the speaker unit directly.
5. Using an electric screwdriver, tighten four stopper
mounting-screws (Phillips screws). Within five to ten
seconds after the stopper begins to lower, it will clamp
the ceiling panel and the electric screwdriver will
automatically stop.
Note
To remove the speaker, rotate the four stopper screws
counterclockwise. (The stopper rises and returns to its
housing position within the speaker box.)
Stopper
Electric screwdriver
Note
Use an electric screwdriver to tighten the stopper
screws. (Tightening torque: 10-15 kg f • cm)
6. Pull out an S-shaped hook (2 places) from the speaker
front, and hook them into the corresponding hooks on
the back side of the grille. Then fit the grille flush with
the speaker.
5. Overload Protective Circuit (F-101C and F-121C)
Both the F-101C and F-121C are equipped with a circuit to protect them against extremely large input. If the
sound volume drops during use, this means that the protective circuit is in operation. In such a case, turn
down the volume and wait till the protective circuit is automatically reset (10 seconds after turned down). After
the circuit is reset, keep the volume slightly lower than before.
6. Specifications
Note:
This specification is subject to change without notice.
Spring
S-shaped hook
Front grille
Model No.
Enclosure Type
Speaker Unit
Power Handling
Capacity
Impedance
Output Sound
Pressure Level
Frequency Response
Dimensions
Weight
Color
Accessories
Others
F-101C
F-101CM
40 W (continuous pink noise)
120 W (continuous program)
8
F-121C
Bass-reflex type
Full-range 12 cm cone speaker
20 W (rated input)
100 V line
500 (20
W)
1 (10
W)
2 (5
W)
3.3 (3
W)
10 (1
W)
70 V line
250 (20
W)
500 (10
W)
1 (5
W)
1.7 (3
W)
5 (1
W)
40 W (continuous pink noise)
120 W (continuous program)
8
F-121CM
20 W (rated input)
100 V line
500 (20
W)
1 (10
W)
2 (5
W)
3.3 (3
W)
10 (1
W)
90 dB (1 W, 1 m)
70 V line
250 (20
W)
500 (10
W)
1 (5
W)
1.7 (3
W)
5 (1
W)
80 - 18,000 Hz
Front grille diameter: 260 mm, Ceiling mounting hole diameter: 218 mm
Ceiling depth: 160 mm (maximum), Usable ceiling board thickness: 5-35 mm
2.5 kg
2.8 kg
2.5 kg
2.8 kg
Speaker box: Black, Front grille: White
Template x 1, Instruction manual x 1
———————
Electronic controller AC-120 (option)