LD LDDDQ12 Manuale utente
USER´S MANUAL
BEDIENUNGSANLEITUNG
MANUEL D`UTILISATION
MANUAL DE USUARIO
INSTRUKCJA OBSŁUGI
MANUALE D‘ USO
LD DDQ SERIE
DSP-CONTROLLED 2-WAY ACTIVE SPEAKER
LDDDQ10 / LDDDQ12
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Thank you for choosing LD Systems!
We have designed this product to operate reliably over many years. Therefore LD Systems guarantees for high
quality products with its name and many years of experience as a producer.
Please, take a few moments to read these instructions carefully, as we want you to enjoy your new LD Systems
products quickly and to the fullest.
For information about LD Systems check out our website WWW.LD-SYSTEMS.COM
Introduction
Their outstanding performance of the LD Systems DDQ series is the result of a precise design and perfect
features that deserve top marks across the board.
The DDQ systems are loaded with Faital Pro woofers and BMS tweeters. They are driven separately by two Hypex
UCD400 400W power stage modules.
The signal is processed by a Sharc DSP programmed especially for the DDQ active systems with converters that
have a remarkable dynamic range of 127dB. It handles all protection functions, whereby the predictive peak
limiter is especially worthy of mention. With a look ahead time of 1 millisecond, it ensures absolutely distortion-
free reproduction even at maximum volume.
The bass-reflex cabinet of the DDQ active speaker is made of multiplex. Thanks to the innovative Evolutive
handles and their comparatively low weight, the DDQ 10" and 12" active speakers are easy to transport. They
are designed for all PA applications: for mobile use, permanent installation, compact systems, FOH systems or
delay lines. Thanks to their integral 50° angle, they can also be used as active monitors. All DDQ systems are
made in Germany!
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LD DDQSERIES
DSP-CONTROLLED 2-WAY ACTIVE SPEAKER
LDDDQ10 / LDDDQ12
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1. Please read this information carefully.
2. Keep all information and instructions in a safe place.
3. Please follow the instructions.
4. Please observe all warnings. Don‘t remove safety instructions or any other information located on the device.
5. Use the device only in the intended manner.
6. Use only stable and appropriate stands and/or mounts when the device is permanently installed. Make certain
that wall brackets are firmly secured. Make certain that the unit is installed securely and cannot fall down.
7. When installing please observe the corresponding safety standards for your country.
8. Do not install the device near radiators, heat accumulators, ovens or other sources of heat. Make certain that
the device is always installed so that is cooled sufficiently and cannot overheat.
9. Do not place open sources of ignition, e.g., burning candles, on the device.
10. Do not cover ventilation slots.
11. Do not operate the device in the immediate vicinity of water. Do not expose this equipment to combustible
materials, liquids or gases.
12. Please make certain that dripping or splashing water cannot get inside the device. Do not put objects filled
with fluids, such as vases or drinking vessels, on top of the device.
13. Make certain that objects cannot fall into the device.
14. Use the device only with accessories with which the manufacturer intends the device to be used.
15. CAUTION: If this device has a mains connector equipped with protective earth, it must be connected to a
mains socket with a protective ground connection. Never disable the function of the protective ground connection
of the included power cord.
16. Do not turn on the device immediately if it was exposed to strong temperature fluctuations (for example after
transportation). Moisture and condensation may damage the device. Leave the device switched off until it has
reached room temperature.
17. Do not open the device and do not make any changes to the device.
18. Before connecting to mains power, make certain that the mains voltage and the mains frequency are the
same as the operating values of the device (see type label). If the device is equipped with a supply voltage selec-
tor switch, make certain that the values of the device match the values of the mains power before connecting.
If the plug on the included cord does not fit your mains outlet, contact your electrician.
19. Make certain that the power cord is not stepped on. Protect the power cord against pinching, especially at
the device plug and the power plug.
20. In order to prevent damage or accidents, for example, due to tripping hazards, check all connections once
you have connected the device.
21. When connecting the device, make certain that the power plug remains readily accessible.
Always pull out the power plug when the device is not in use or when you clean the device. Disconnect the
power cord by pulling the plug not the cable. Never touch the power cable and power adapter with wet hands.
22. Avoid switching the device on and off at short intervals, because it may shorten the durability of the device.
23. IMPORTANT: Replace fuse only by fuse of same type and rating! If fuse blows repeatedly please contact
authorized service center!
24. In order to disconnect the device completely from the mains voltage, the power plug must be unplugged.
25. If your device is equipped with a Volex power connector, the matching Volex device plug must be unlocked
in order to disconnect it. This also means that a tug on the power cord can pull the device out of place, thus
causing personal injuries and/or property damage. Thus please make certain to route your cables carefully.
PREVENTIVE MEASURES:
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26. If there is a risk of lightning strike or during extended periods of disuse, unplug the power plug.
27. During transport, make certain that the equipment being transported cannot fall down and possibly
cause personal injuries and/or property damage.
28. If your device no longer works properly, if it has been exposed to liquids or an object has fallen inside it or
if it has been damaged in some other manner, turn the device off immediately und unplug the power plug. This
device should be repaired only by authorized experts.
29. Use only a dry cloth to clean the device.
30. Comply with all of the disposal laws that are applicable in your country. During disposal, please separate
plastic and paper/cardboard.
31. Plastic bags must be kept out of the reach of children.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
PREVENTIVE MEASURES:
CAUTION:
To reduce the risk of electric shock, do not remove cover (or back). No user serviceable parts inside. Refer
servicing to qualified personnel.
The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the
user to the presence of uninsulated “dangerous voltage” within the product´s enclosure that may be
of sufficient magnitude to constitute a risk to persons.
The exclamation mark within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
appliance.
CAUTION! HIGH VOLUME!
This product is designed for professional use. Therefore the commercial use of this equipment is liable to the
rules and regulations of the Accident Prevention & Insurance Association of your industry sector. Adam Hall as a
manufacturer is bound to inform you formally about the existence of eventual sanitary risks.
Risk of hearing damage due to prolonged exposure to excessive volumes: When using this product high sound
pressure levels (SPL) can be generated, sufficient to cause permanent hearing damage to performers, production
crew and audience members. Caution should be taken to avoid prolonged exposure SPL in excess of 90 dB.
ENGLISH
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3
5
6
2
1
4
10
9
8
7
11 12
REAR/ CONTROLS (LDDDQ12 PICTURED):
1ANALOG INPUT
Balanced XLR line input (23 dBu max.).
2INPUT LINK
Balanced XLR line output
3SUB OUT
Balanced XLR subwoofer line output
4GAIN DB
Input sensitivity control with respect to the volume
of the amplifier module. If the maximum input
level (23dBu) is exceeded, this is indicated by
collective flashing of LEDs 7-10. In this case,
reduce the level of the signal source to avoid
negative effects on the sound.
5LOW CUT / SUB OUT
Enabled switch activates both the high pass filter
for DDQ10/12 (100 Hz, 18 dB/oct. Butterworth)
and the low pass filter (100 Hz, 18 dB/oct.
Butterworth) for the SUB OUT. If the switch is not
enabled, the sub output signal is not affected by
any filter.
6GROUND LIFT
Can eliminate ground loop hum if devices with
varying ground potentials are connected.
7OPERATE LED
Lights up once the speaker system is switched on
and properly connected to the power mains.
8SIGNAL LED
Lights up when an audio signal is present at the
line input (> -30dBu).
9PEAK LIMIT LED
Lights up if the speaker is operating in the
clipping range. Brief flashing is not a cause for
concern, since the internal audio limiter compen-
sates for over-modulation. Permanent illumination
should be avoided by reducing the input level.
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REAR/ CONTROLS (LDDDQ12 PICTURED):
10 LOW CUT / SUB OUT LED
Lights up if the associated switch is pressed.
11 AC INPUT
(180 - 264 V AC, 47 - 63 Hz)
Connection via the IEC power cord included.
12 POWER SWITCH
For turning the unit on and off.
REAR/ CONTROLS (LDDDQ12 PICTURED):
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LDDDQ10
dB
0
-10
-20
-30
-40
0.05 0.2 0.5 1 2 5 10 kHz
LDDDQ12
dB
0
-10
-24
-30
-40
0.05 0.2 0.5 1 2 5 10 kHz
FREQUENCY RESPONSE:
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120
180
60
0
- 60
- 120
- 180
125
200
315
500
800
1250
2000
3150
8000
5000
20000
12500
-6 dB -12 dB
Horizontal Isobars of: LD DDQ10
120
180
60
0
- 60
-120
-180
125
200
315
500
800
1250
2000
3150
8000
5000
20000
12500
Vertical Isobars of: LD DDQ10
-6 dB -12 dB
DISPERSION BEHAVIOUR:
FREQUENCY RESPONSE:
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120
180
60
0
- 60
- 120
- 180
125
200
315
500
800
1250
2000
3150
8000
5000
20000
12500
Horizontal Isobars of: LD DDQ12
-6 dB -12 dB
120
180
60
0
- 60
- 120
- 180
125
200
315
500
800
1250
2000
3150
8000
5000
20000
12500
Vertical Isobars of: LD DDQ12
-6 dB -12 dB
DISPERSION BEHAVIOUR:
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