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Install  the  unit  only  in  a  location  that  can

structurally  support  the  weight  of  the  unit  and  the
mounting  bracket.  Doing  otherwise  may  result  in
the  unit  falling  down  and  causing  personal  injury
and/or property damage.

Since  the  unit  is  designed  for  in-door  use,  do  not

install it outdoors. If installed outdoors, the aging of
parts causes the unit to fall off, resulting in personal
injury.  Also,  when  it  gets  wet  with  rain,  there  is  a
danger of electric shock. 

Indicates  a  potentially  hazardous  situation
which,  if  mishandled,  could  result  in  moderate
or  minor  personal  injury,  and/or  property
damage.

CAUTION

Avoid  touching  the  unit's  sharp  metal  edge  to

prevent injury.

To avoid electric shocks, be sure to switch off the

amplifier's power when connecting speakers.

Do  not  operate  the  unit  for  an  extended  period  of

time with the sound distorting. This is an indication
of  a  malfunction,  which  in  turn  can  cause  heat  to
generate and result in a fire.

PC-668R-AS

PC-668RC-AS

15 W (100 V, 70 V line) 

100 V line: 670 

Ω 

(15 W), 1 k

Ω

 (10 W), 2 k

Ω

 (5 W), 3.3 k

Ω

 (3 W)

   70 V line: 330 

Ω 

(15 W), 670 

Ω

 (7.5 W), 1 k

Ω

 (5 W), 2 k

Ω

 (2.5 W), 3.3 k

Ω

 (1.5 W)

96 dB (1 W, 1 m)

65 – 20,000 Hz (at 20 dB below peak)

20 cm (8") double cone type

ø280 x 90 (d) mm (ø11.02" x 3.54") 

ø250 ± 5 mm (ø9.84" ±0.2") 

0.96 kg (2.12 lb)

0.97 kg (2.14 lb)

Not Aplicable

Push-in connector

5 – 25 mm (0.2" – 0.98") 

Spring clamp 

Baffle: polypropylene resin, white (RAL 9016 equivalent) 
Grille: Surface-treated steel plate net, white (RAL 9016 equivalent), paint 

Paper pattern ........ 1

2. SPECIFICATIONS

Note: The design and specifications are subject to change without notice for improvement. 

Model No. 
Rated Input 
Rated Impedance 

Sensitivity 
(500 – 5,000 Hz, pink noise) 
Frequency Response 
Speaker Component 
Dimensions for Fixing Hole 
Ceiling Thickness for Mounting 
Speaker Mounting Method 
Input Connector 
Finish 

Dimensions 
Weight 
Accessory

Indicates  a  potentially  hazardous  situation
which,  if  mishandled,  could  result  in  death  or
serious personal injury.

WARNING

Thank you for purchasing TOA's Ceiling Mount Speaker. 
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

CEILING MOUNT SPEAKERS

INSTALLATION MANUAL

1. SAFETY PRECAUTIONS 

Before installation or use, be sure to carefully read

all  the  instructions  in  this  section  for  correct  and
safe operation. 

Be sure to follow all the precautionary instructions

in  this  section,  which  contain  important  warnings
and/or cautions regarding safety. 

After  reading,  keep  this  manual  handy  for  future

reference. 

Do not use other methods than specified to mount

the  bracket.  Extreme  force  is  applied  to  the  unit
and  the  unit  could  fall  off,  possibly  resulting  in
personal injuries.

PC-668R-AS

PC-668RC-AS

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