GAIN G1 G2
8dB OFF OFF
16dB ON OFF
24dB OFF ON
32dB ON ON G1 G2 NC
ON
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4. SET THE GAIN AND VOLUME LEVEL
To Set the gain and volume level of the amplifier module, please follow
instruction as below :
1. Remove 4 screws to open back cover of Horn speaker.
On the PCB, there is DIP Switch marked “SW1”.
To Set gain refer to table below :
Adjust the internal volume (anti-clockwise for
volume down or clockwise for volume up)
until the output level is adequate. If the output
level is insufficient, set the gain to the next
highest gain, according to the table and
repeat the precedure with the internal
volume.
2.
Note.
Factory preset the gain and volume :
* Gain setting : 16dB
* Internal Volume : Maximum
Now replace the rear cover. As this Horn speaker is
weatherproof to IP65, care must be taken during the
replacement of the back cover, to ensure the gaskets are
correctly refitted and watertight.
3.
When installing the Horn speaker, be sure the drain hole is positioned toward the
ground. Otherwise, rainwater could enter the interior of speaker and the aging of
parts may cause speaker failure.
5. WIRING CONNECTION AND WIRING BALANCED INPUT
Speaker cord
RCA Jack
( Audio input)
DC Plug
( DC Input )
Power sources
(DC 12 V)
Audio sources
WARNING
Please ensure that power source is terminated correctly to
prevent damage to the amplifier module
Connect the DC plug to power sources (DC 12V).
Recommended adaptor power supply, please use TOA’s optional adaptor product.
For Audio sources, connect to RCA Jack.
Yellow (Hot)
Green (Cold)
Cut Black cable (Earth)
(ground wire)
Remove RCA Jack Cover
RCA Jack
(Audio input)
Default wiring audio input from factory is unbalanced installation.
Below is the instruction to adjust audio input for balanced-line installation .
HOW TO MAKE BALANCED-LINE INPUT
Speaker cord
Local codes may be required for other installation methods. Check with authority
having jurisdiction to determine acceptability of the mounting methods.
Do not install the speaker face-up from a horizontal plane. If water accumulates in
the horn, this may cause the speaker to malfunction.
Do not install the speaker under environment that subject speaker to contamination.
[Front view]
Drain hole Center horn
6. INSTALLATION PRECAUTIONS
INTERNAL VOLUME
ATTENTION !!
To avoid damage, do not put more
pressure when turning the internal control.
The rotational stopper strength of internal
volume is about 2.94 N.cm.
