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INSTRUCTION MANUAL

CEILING SPEAKER SYSTEM

F-122C

1. SAFETY PRECAUTIONS 

.......................... 2

2. GENERAL DESCRIPTION 

........................ 2

3. FEATURES 

................................................ 3

4. NOMENCLATURE AND DIMENSIONS 

.... 3

5. INSTALLATION 

......................................... 4

6. REMOVING THE SPEAKER 

FOR MAINTENANCE 

................................. 9

7. REPAINTING THE SPEAKER 

.................. 10

8. ABOUT THE INPUT OVERLOAD 

PROTECTION CIRCUITRY 

...................... 10

9. ABOUT EQUALIZATION 

.......................... 10

10. SPECIFICATIONS 

.................................... 12

Accessories ............................................... 12
Optional Components ................................ 12

Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.

TABLE OF CONTENTS

Summary of Contents for F-122C

Page 1: ...HE SPEAKER FOR MAINTENANCE 9 7 REPAINTING THE SPEAKER 10 8 ABOUT THE INPUT OVERLOAD PROTECTION CIRCUITRY 10 9 ABOUT EQUALIZATION 10 10 SPECIFICATIONS 12 Accessories 12 Optional Components 12 Please fo...

Page 2: ...locations exposed to the direct sunlight near the heaters or in locations generating sooty smoke or steam as doing otherwise may result in fire or electric shock Do not operate the unit for an extend...

Page 3: ...verage Uniform sound output levels are achievable not only directly under the speaker but also over a wide radius Because the speaker is provided with both low and high impedance operating capability...

Page 4: ...frame Use the supplied ceiling reinforcement ring in conjunction with the optional HY TB1 Tile Bar Bridge Ceiling mounting in a larger than specified hole Use the supplied ceiling reinforcement ring i...

Page 5: ...ting hole The reinforcement ring is too large to be inserted into the mounting hole unless folded HY TR1 optional Ceiling panel Ceiling reinforcement ring accessory Speaker unit 200 300 mm 7 7 8 11 13...

Page 6: ...cable HY BC1 optional Caution Ensure that this length is shorter than 53 mm 2 3 32 Installed HY BC1 Example of mounting to suspension pipe Step 4 Attach a safety wire to prevent the speaker from acci...

Page 7: ...e sure that the speaker s 3 mounting tabs are turned inside the unit as shown in the figure If turned outward the speaker cannot be inserted through the mounting hole In Out Mounting tab 6 1 Flush cei...

Page 8: ...the grille to full stop in the direction indicated by the LOCK arrow Tip The front grille employs a double locking system that clicks into place once partway through rotation but only locks into posi...

Page 9: ...lockwise to full stop then lightly pull it downward Tip The front grille employs a double locking system If the grille cannot be detached when lightly pulled downward it likely has not yet been fully...

Page 10: ...drastic reduction in sound volume indicates that the protection circuitry has been enabled In such cases simply reduce the amplifier volume The protection circuitry will automatically reset in approx...

Page 11: ...tions Filter characteristics for F 122C low frequency cut mode Setting for speech applications or with a subwoofer Filter characteristics for sub woofer Filter Frequency Gain Q PEQ 85 Hz 11 5 dB 2 871...

Page 12: ...ncy Response 70 20 000 Hz 10 dB 50 20 000 Hz 20 dB at installation in 1 2 free sound field Measured by installing the unit in the center of a ceiling Speaker Component 12 cm 5 cone type Mounting Hole...

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