Toa DH-110, DH-120 Instruction Manual
INSTRUCTION MANUAL
STRAIGHT HORN SPEAKER
•
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.
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.
• Use nuts and bolts that are appropriate for the
installation place's structure and composition.
Failure to do so may cause the speaker to fall,
resulting in material damage and possible personal
injury.
WARNING
•
Indicates a potentially hazardous situation which,
if mishandled, could result in death or serious
personal injury.
• The standard supplied mounting bracket is not
designed for use in locations exposed to strong winds
and could become dislodged, resulting in possible
personal injury. To ensure that the installation can
withstand expected wind forces, always use the
supplied mounting bracket in combination with a
separately prepared bracket.
Tighten each nut and bolt securely. Ensure that
the bracket has no loose joints after installation to
prevent accidents that could result in personal injury.
• Attach the safety wire to the unit when mounting in
locations high above the ground. Failure to do so
could result in personal injury if the speaker should
later fall for any reason.
• Protect the unit from exposure in snowy areas,
as the weight of snow build-up could cause the
speaker to fall, resulting in personal injury.
DH-110
DH-120
2. EQUIPMENT CONFIGURATION
The DH-110 speaker is comprised of the DHA-11 (Horn A) and the DH-11B component (Horn B, Horn C and other parts).
The DH-120 speaker is comprised of the DHA-11 and the DH-12B component (Horn B, 2-driver unit adapter and other parts).
Speaker Model No.
Component Model No. DHA-11 DH-11B DH -12B
Parts to make up
the component
* Although two screws are supplied, only one screw is used to assemble the DH-110.
DH-110
DH -120
Horn A 1 –
Horn B – 1
2-driver unit adapter – – 1
Horn C – 1 –
Mounting bracket – 1
Bird net – 1
Rubber gasket A – 1
Throat net – 1
Rubber gasket B – 1
Hex bolt (M12), plain washer (M12), spring washer (M12)
M6 hex bolt with spring washer, M6 washer – 8 each (stainless steel)
M4 screw – 2* (stainless steel)
– 6 each (stainless steel)
3. SPECIFICATIONS (COMMON TO THE DH-110 AND DH-120)
Sensitivity 110 dB (1 W, 1 m) (When operated with a driver)
Frequency Response 180 Hz – 6 kHz (When TU-631 or TU-651 series is used)
180 Hz – 8 kHz (When the TU-660 series is used)
Driver Coupling 1 – 3/8 18 threads (inch screw)
Variable Installation Angle Vertical: +10°, –20° (when locally procured mounting bracket is used)
Finish Ivory
Weight 5.3 kg
Note: The design and specications are subject to change without notice for improvement.
4. INSTALLATION PRECAUTIONS
WARNING
The supplied mounting bracket could become dislodged by strong winds, resulting in
possible personal injury. To prevent this from expected wind forces, additionally use a
separately prepared bracket as shown in Figure 1.
[Figure 1]
Separately-arranged mounting bracket
• Install the speaker as shown in Figure 1 and take care that rain water does not enter the driver
unit from the front of the speaker. Hanging the speaker as shown in Figure 2 or installing it
sideways could cause rain water to collect inside the driver unit, resulting in speaker failure.
• When facing the speaker upward, its mounting angle must be less than 10°. Exceeding this
limit could cause rain water to collect inside the horn and no sound could be output.
• When mounting two driver units to the DH-120, make sure that both units are of the
same model number. If they differ in model number or power handling capacity, sound
interference may occur, resulting in distorted sound or, at worst, speaker failure.
5. ASSEMBLY
The following figure applies to the assembly of both the DH-110 and DH-120.
M6 hex bolt with spring washer, and plain washer
M6 hex bolt with spring washer, and plain washer
Rubber gasket A
Bird net
Horn A (DHA-11)
Horn guard*
Rubber gasket B
Throat net
Horn B
M12 hex bolt, spring washer, plain washer
Mounting bracket
M12 hex bolt, spring washer, plain washer
* Attached to protect Horn A from damage caused during transit
or installation. Remove them when installing the speaker.
M4 screw
Horn C (DH-11B)
M4 screw
2-driver unit adapter (DH-12B)
Ground side
[Figure 2]
6. DIMENSIONAL DIAGRAM
DH-110
2-M12 holes with effective depth of 15 mm
(Both for fixing separately-arranged mounting bracket)
ø518
[Horn B dimension]
190
2-ø10
Manufacturer:
TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo, Japan
968
172
Horn B
320466
Mounting bracket
Traceability Information for Europe
198255
110
DH-120
2-M12 holes with effective depth of 15 mm
(Both for fixing separately-arranged mounting bracket)
ø518
466
[Dimensions of bracket mounting holes]
Authorized representative:
TOA Electronics Europe GmbH
Suederstrasse 282, 20537 Hamburg, Germany
200
884
Horn B
320
R51
11
ø11
40
60
Unit: mm
114
15 1515 15
255
Mounting bracket
URL: http://www.toa.jp/
133-01-00227-00
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