TOA PC-668R-AS Ceiling Mount Speaker Instruction Manual
- June 14, 2024
- TOA
Table of Contents
INSTALLATION MANUAL
PC-668R-AS
PC-668RC-AS
CEILING MOUNT SPEAKERS
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.
SAFETY PRECAUTIONS
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Before installation or use, be sure to carefully read all the instructions in this section for correct and safe operation.
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Be sure to follow all the precautionary instructions in this section, which contain important warnings and/or cautions regarding safety.
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After reading, keep this manual handy for future reference.
WARNING
Indicates a potentially hazardous situation which, if mishandled, could result in death or serious personal injury. -
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.
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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.
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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.
CAUTION
Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage. -
Avoid touching the unit’s sharp metal edge to prevent injury.
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To avoid electric shocks, be sure to switch off the amplifier’s power when connecting speakers.
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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.
SPECIFICATIONS
| Model No. | PC-668R-AS | PC-668RC-AS |
|---|---|---|
| Rated Input | 15 W (100 V, 70 V line) | |
| Rated Impedance | 100 V line: 670 Ω (15 W), 1 kΩ (10 W), 2 kΩ (5 W), 3.3 kΩ (3 |
W)
70 Vline: 330 Ω (15 W), 670 Ω (7.5 VV), 1 kΩ (5 W), 2 kΩ (2.5 VV), 3.3 kΩ (1.5
W)
Sensitivity (500 – 5,000 Hz, pink noise)| 96 dB (1 W, 1 m)
Frequency Response| 65 – 20,000 Hz (at 20 dB below peak)
Speaker Component| 20 cm (8″) double cone type
Dimensions for Fixing Hole| Ø250 ± 5 mm (Ø9.84″ ±0.2″)
Ceiling Thickness for Mounting| 5 – 25 mm (0.2″ – 0.98″)
Speaker Mounting Method| Spring clamp
Input Connector| Not Aplicable| Push-in connector
Finish| Baffle: polypropylene resin, white (RAL 9016 equivalent)
Grille: Surface-treated steel plate net, white (RAL 9016 equivalent), paint
Dimensions| Ø280 x 90 (d) mm (Ø11.02″ x 3.54″)
Weight| 0.96 kg (2.12 Ib)| 0.97 kg (2.14 Ib)
Accessory| Paper pattern…………..1
Note: The design and specifications are subject to change without notice for improvement.
GENERAL DESCRIPTION
Integrated with a resin panel and speaker frame, the PC-668R-AS and PC-668RC-
AS are the ceiling mount speakers with a metal grille attached. They feature
spring clamp mechanism for easy speaker mounting to the ceiling.
The input impedance can be easily changed by changing the tap position of the
transformer.
INSTALLATION
Step 1. Using the supplied paper pattern as a guide, open a mounting hole of
the dimension specified below in the ceiling.
Step 3. Make wiring.
3.1.a. PC-668R-AS
Connect its HOT line to the black lead wire, and COM line to the white one.
Such as the figure 2.
3.1.b. PC-668RC-AS
Insert the lead-in cables (cables from the amplifier) and lead-cut cables
(cables to other speakers) into the input connector. Such as the figure
3.
3-2. Change the input impedance as needed.
The speaker’s input is factory-preset to 670 Ω.
When changing the input impedance, detach the black wire connected to the
matching transformer, and reinsert it into the desired input tap referring to
the table below.
| Impedance | 330 Ω | 670 Ω | 1 k Ω | 2 k Ω | 3.3 k Ω |
|---|---|---|---|---|---|
| 100 Vline | – | 15W | 10W | 5W | 3W |
| 70 Vline | 15W | 7.5W | 5W | 2.5W | 1.5W |
Step 4. Push the panel surface into the mounting hole.
WIRING DIAGRAMS
Traceability Information for Europe
Manufacturer:
TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo, Japan
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg, Germany
URL: http://www.toa.com.sg/
131-14-00187-00
TOA Corporation
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