LD DDQ SERIES DDQ15 User manual

USER´S MANUAL
BEDIENUNGSANLEITUNG
MANUEL D`UTILISATION
MANUAL DE USUARIO
INSTRUKCJA OBSŁUGI
MANUALE D‘ USO
LD DDQ SERIES
DSP-CONTROLLED 2-WAY ACTIVE SPEAKER
LDDDQ15

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You‘ve made the right choice!
We have designed this product to operate reliably over many years. LD Systems stands for this with its name and
many years of experience as a manufacturer of high-quality audio products.
Please read this User‘s Manual carefully, so that you can begin making optimum use of your LD Systems product
quickly.
You can find more information about LD SYSTEMS at our Internet site 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 DDQ15 active speaker is loaded with a Faital Pro woofer and a BMS tweeter. They are driven separately by
two Hypex UCD700 700W 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 enclosure of the active speaker is made of multiplex. It is also easy to transport thanks
to the innovative Evolutive handles and the comparatively low weight.
The DDQ15 active speaker is designed for all PA applications: for mobile use, for permanent installation,
in compact systems, FOH systems or delay lines, and thanks to the integral 50° angle, it can also be used as a
stage monitor. All DDQ systems are made in Germany!

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LD DDQSERIES
DSP-CONTROLLED 2-WAY ACTIVE SPEAKER
LDDDQ15

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Avoid direct sunlight!
PREVENTIVE MEASURES:
1. Please read these instructions carefully.
2. Keep all information and instructions in a safe place.
3. Follow the instructions.
4. Observe all safety warnings. Never remove safety warnings or other information from the equipment.
5. Use the equipment only in the intended manner and for the intended purpose.
6. Use only sufficiently stable and compatible stands and/or mounts (for fixed installations). Make certain that wall
mounts are properly installed and secured. Make certain that the equipment is installed securely and cannot fall down.
7. During installation, observ e the applicable safety regulations for your country.
8. Never install and operate the equipment near radiators, heat registers, ovens or other sources of heat. Make certain
that the equipment is always installed so that is cooled sufficiently and cannot overheat.
9. Never place sources of ignition, e.g., burning candles, on the equipment.
10. Ventilation slits must not be blocked.
11. Do not use this equipment in the immediate vicinity of water (does not apply to special outdoor equipment -
in this case, observe the special instructions noted below. Do not expose this equipment to flammable materials,
fluids or gases.
12. Make certain that dripping or splashed water cannot enter the equipment. Do not place containers filled with
liquids, such as vases or drinking vessels, on the equipment.
13. Make certain that objects cannot fall into the device.
14. Use this equipment only with the accessories recommended and intended by the manufacturer.
15. Do not open or modify this equipment.
16. After connecting the equipment, check all cables in order to prevent damage or accidents, e.g., due to
tripping hazards.
17. During transport, make certain that the equipment cannot fall down and possibly cause property damage and
personal injuries.
18. If your equipment is no longer functioning properly, if fluids or objects have gotten inside the equipment or
if it has been damaged in anot her way, switch it off immediately and unplug it from the mains outlet (if it is a
powered device). This equipment may only be repaired by authorized, qualified personnel.
19. Clean the equipment using a dry cloth.
20. Comply with all applicable disposal laws in your country. During disposal of packaging, please separate
plastic and paper/cardboard.
21. Plastic bags must be kept out of reach of children.
FOR EQUIPMENT THAT CONNECTS TO THE POWER MAINS:
22. CAUTION: If the power cord of the device is equipped with an earthing contact, then it must be connected to
an outlet with a protective ground. Never deactivate the protective ground of a power cord.
23. If the equipment has been exposed to strong fluctuations in temperature (for example, after transport), do
not switch it on immediately. Moisture and condensation could damage the equipment. Do not switch on the
equipment until it has reached room temperature.
24. Before connecting the equipment to the power outlet, first verify that the mains voltage and frequency match
the values specified on the equipment. If the equipment has a voltage selection switch, connect the equipment to
the power outlet only if the equipment values and the mains power values match. If the included power cord or
power adapter does not fit in your wall outlet, contact your electrician.
25. Do not step on the power cord. Make certain that the power cable does not become kinked, especially at the
mains outlet and/or power adapter and the equipment connector.
26. When connecting the equipment, make certain that the power cord or power adapter is always freely
accessible. Always disconnect the equipment from the power supply if the equipment is not in use or if you want

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To prevent possible hearing damage, avoid listening at high volume levels over long periods of time.
Even exposure to short bursts of loud noise can result in hearing loss. Please keep the volume
constantly at a comfortable level.
Avoid direct sunlight!
SAFETY:
to clean the equipment. Always unplug the power cord and power adapter from the power outlet at the plug or
adapter and not by pulling on the cord. Never touch the power cord and power adapter with wet hands.
27. Whenever possible, avoid switching the equipment on and off in quick succession because otherwise this
can shorten the useful life of the equipment.
28. IMPORTANT INFORMATION: Replace fuses only with fuses of the same type and rating. If a fuse blows repea-
tedly, please contact an authorised service centre.
29. To disconnect the equipment from the power mains completely, unplug the power cord or power adapter
from the power outlet.
30. If your device is equipped with a Volex power connector, the mating Volex equipment connector must be
unlocked before it can be removed. However, this also means that the equipment can slide and fall down if
the power cable is pulled, which can lead to personal injuries and/or other damage. For this reason, always be
careful when laying cables.
31. Unplug the power cord and power adapter from the power outlet if there is a risk of a lightning strike or
before extended periods of disuse.
CAUTION
RISK OF ELECTRIC S HOCK
DO NOT OPEN
CAUTION:
Never remove the cover, because otherwise there may be a risk of electric shock. There are no user serviceable
parts inside. Have repairs carried out only by qualified service 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 of electrical shock.
The exclamation mark within an equilateral triangle is intended to alert the user to the presence of
important operating and maintenance instructions.
CAUTION – HIGH VOLUME LEVELS WITH AUDIO PRODUCTS!
This equipment is intended for professional use. Therefore, commercial use of this equipment is subject to the
respectively applicable national accident prevention rules and regulations. As a manufacturer, Adam Hall is
obligated to notify you formally about the existence of potential health risks.
Hearing damage due to high volume and prolonged exposure: When in use, this product is capable of producing
high sound-pressure levels (SPL) that can lead to irreversible hearing damage in performers, employees, and
audience members. For this reason, avoid prolonged exposure to volumes in excess of 90 dB.

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3
5
6
2
1
4
10
9
8
7
CONNECTIONS, CONTROLS, AND INDICATORS:
1ANALOG INPUT
Balanced XLR line input (23 dBu max.).
2INPUT LINK
Balanced XLR line output This audio signal is analogous to the signal of the line input ANALOG INPUT.
3SUB OUT
Balanced XLR subwoofer line output Connection for an active subwoofer without an internal low-pass filter.
Press the LOW CUT / SUB OUT switch to activate both the internal low-cut filter of the DDQ15 active speaker
as well as the low-pass filter for the SUB OUT line output.
4GAIN DB
Input sensitivity control with respect to the volume of the amplifier module. If the maximum input level (23
dBu) 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
This switch activates both the low-cut filter of the DDQ15 active speaker (100 Hz, 18 dB/Oct. Butterworth) as
well as the low-pass filter (100 Hz, 18 dB/Oct. Butterworth) for the SUB OUT. If the switch is not pressed, the
DDQ15 active speaker operates in full-range mode and the output signal for the subwoofer is unfiltered.

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CONNECTIONS, CONTROLS, AND INDICATORS:
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, properly connected to the power mains, and operational.
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 compensates for over-modulation. Permanent illumination should be avoided by
reducing the input level.
10 LOW CUT / SUB OUT LED
Lights up as soon as the LOW CUT / SUB OUT switch is pressed.
11 AC INPUT
Lockable, Volex-compatible power socket. Connection via the included IEC power cord. To unlock, please
press the spring-loaded button on the connector.
IMPORTANT INFORMATION: BEFORE using this equipment, make certain that the mains voltage of your
energy utility and the operating voltage of the device match! Note the markings on the rear of the equipment
(90-160V ~ / 47-63 Hz or 180-264V ~ / 47-63 Hz)!
12 POWER
On / Off switch for the power supply of the device. Before switching the active speaker on or off, always adjust
the volume to minimum (GAIN DB all the way to the left). After power on, the DSP unit takes a few seconds to
initialise, after which the OPERATE LED lights up to indicate that the active speaker is now operational.
CONNECTIONS, CONTROLS, AND INDICATORS:

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dB
0
-10
-20
-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
Horizontal Isobars of: LD DDQ15
-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 DDQ15
-6 dB -12 dB
DISPERSION BEHAVIOUR:
FREQUENCY RESPONSE:

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Heat Sink SIMPS Amp Power Rail
Power Amps
2x 700W
Subwoofer out Sym.
Clip Detect Amp
Low Cut/ Sub Out
Gain Encoder
Analog In Sym.
Analog link
Stacked ADC 24bit/48kHz Sens. 23dBu Dyn. 127dB
Master Gain
2 Ch.
2 Ch. Gain Delay IlR EQ IlR Xov Phase
2 Ch. High Pass
2 Ch. LS Peak Look ahead (1ms) LS Thermal limiter Amp RMS
1 Ch. LS Peak Look ahead (1ms)
1 Ch. Low Pass
2 Ch DAC max Level 13,7dBu 113dB Dyn.
1 Ch DAC max Level 18dBu 113dB Dyn.
Limiter Decrease
Sharc
Mute Control
Onboard PS
+/- 14,4V Dig Vol.
Temp. Ctr.
µC
DSP BLOCK DIAGRAMME:

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DSP BLOCK DIAGRAMME:
FRONT OF HOUSE CONFIGURATION
For the front of house application, the narrower side of the HF horn opening must face downward.
STAGE MONITOR CONFIGURATION
For use as a stage monitor, the LD Systems DDQ15 active speaker can be positioned on its side. If necessary, the
HF horn can be rotated by 90° in order to attain a larger treble range dispersion angle. To do this, the active speaker
must first be switched off and disconnected from the mains. Next remove the front grille and loosen and remove
the screws on the mounting flange of the horn Afterwards the horn can be rotated by 90° and re-fastened (please
never rotate more than 90°). If the HF horn is to be rotated back for a vertical setup, this must always be done in
the opposite direction. Rotating the HF horn multiple times in the same direction can damage the leads to the HF
system or its terminals.
HORN CONFIGURATION:

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INSTALLATION & MOUNTING:
FLOWN OPERATION:
The speaker is equipped with appropriate flyware for flown operation.
The LDDDQ15 has M10 threads for use with M10 eyelet bolts, which can be used to suspend the speakers on
chains with snap hooks or on wire ropes.
As an alternative to flying points, the speaker can be flown using the LDDDQ15SB swing bracket developed
especially for use with the LDDDQ15 speaker. The assembly instructions can be found on the following pages of
this user's manual.
Please use only appropriately certified, undamaged flyware (flying points, eyelet bolts, snap hooks, chains, wire
ropes, etc.). The speaker must be additionally secured against falling using suitable and appropriately dimensioned
chains and/or steel cables. Please also observe the requirements with regard to installation personnel. Mounting
on crossbars, ceilings, walls, etc. should be carried out only by appropriately trained personnel. Please observe the
applicable regulations (which vary from country to country)!
MAINTENANCE:
The best way to clean the surface of the speaker cabinet is to use a dry, medium-hard brush (for example, a
wallpaper brush). Use only a dry cloth to clean the control panel.

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12 3 34 4
5
6
1BRACKET
2LEVER SCREW
3STEEL WASHER
4RUBBER WASHER
5GRIP FRAME
6SEMI CIRCULAR NUT
LDDDQ15SB
MOUNTING BRACKET LDDDQ15SB:

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ACCESSORIES:
LDDDQ15B
Protective cover for LDDDQ15
SPS54B
Speaker stand

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ACCESSORIES:
SPECIFICATIONS:
Product type: PA speaker, DSP-controlled
Type: active
Woofer size: " 15
Woofer size: mm 380
Woofer magnet: neodymium
Woofer brand: Faital Pro (15FH520, 4 ohms)
Woofer voice coil: " 3
Woofer voice coil: mm 77
Horn: asymmetrical horn
Tweeter size: " 1,4
Tweeter size: mm 36
Tweeter magnet: ceramic
Tweeter brand: BMS 4554L
Tweeter voice coil: " 1,75
Tweeter voice coil: mm 44,4
Dispersion angle (H x V): ° 80 x 60 asymmetrical
AD/DA converter: 24-bit / 48 kHz
DSP: Sharc
Amplifier: 2 x Class D, Hypex UCD700
Woofer output (RMS): W 700
Tweeter power output (RMS): W 700
Frequency response: Hz 38 - 20.000
Crossover frequency: Hz 1.300
Max. SPL (continuous): dB 124 @ 100 - 10,000Hz continuous program
Max. SPL (peak): dB 136*
Protection: DSP-based "look ahead" limiter, RMS speaker limiter, RMS
power supply limiter, overvoltage, overcurrent
Input impedance: kOhms 10
Input sensitivity: dBu max. 23
Controls: Gain dB, low-cut / sub out, ground lift, power switch
Indicators: Operate, signal, peak limit, low-cut / sub out
Line Inputs: 1
Line input connectors: XLR
Line outputs: Input link, sub out
Line output connectors: XLR

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Operating voltage: 180 - 264 V AC, 47 - 63 Hz (EU model)
90 - 160 V AC, 47 - 63 Hz (US model)
Cabinet material: 15mm birch plywood / 18mm birch plywood
Cabinet surface: Polyurea
Cabinet type: bass reflex
Monitor angle: ° 50
Width: mm 420
Height: mm 736
Depth: mm 488
Weight: kg 32
Other features: LD SYSTEMS Evolutive handles, 36 mm flange, swing-bracket-
ready, switchable high pass filter (100 Hz, Butterworth, 18 dB),
14x M10 flying points
*Short term max. SPL peak @ 1m with pink noise
SPECIFICATIONS:

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MANUFACTURER´S DECLARATIONS:
MANUFACTURER‘S WARRANTY
This warranty extends to the LD SYSTEMS branded product you purchased from Adam Hall. The statutory warranty
rights against the vendor shall not be affected by this warranty. Rather, this warranty gives you additional independent
claims against Adam Hall.
With this warranty, Adam Hall ensures that products you have purchased from Adam Hall or Adam Hall partners,
under normal use, are free of defects in material or workmanship for a period of 2 years from the date of purchase.
The warranty period begins on the date of purchase. In order to assert a claim for warranty service, the proof of
date of purchase is provided by the receipt bearing the date of purchase or the date of purchase on the delivery
note. You are entitled to warranty service under the conditions and provisions set out in this document, if a repair
within the warranty period is required.
This warranty applies only to the original purchaser of the products supplied by Adam Hall and is not transferable
to any person to whom the property is transferred by the original purchaser.
Within the warranty period, the defective parts or the product from Adam Hall will be repaired or replaced. Under
the terms of this warranty, all the replaced or removed components become the property of Adam Hall.
In the unlikely event that a product acquired from Adam Hall, repeatedly exhibits a defect, Adam Hall may decide,
at its discretion, to replace this product with a comparable product of at least the same performance.
Adam Hall does not guarantee that the operation of this product will be uninterrupted or error-free. Adam Hall
accepts no responsibility for any damage due to incorrect compliance with the instructions received in the delivery.
This warranty does not extend to:
- wearing parts (eg battery, tubes).
- devices that have had their serial number removed or damaged, or failed as a result of an accident
- inappropriate or abusive use or other external causes
- devices that were not used in accordance with the operating parameters defined in the user documentation
shipped with the product
- devices that have been repaired using parts not made or distributed by Adam Hall
- devices that have been serviced, modified or repaired by someone other than Adam Hall or an authorised service partner.
These terms and conditions constitute the complete and exclusive warranty agreement between you and Adam
Hall regarding the Adam Hall branded product you have purchased.
This warranty is valid only within Europe. Outside of Europe please contact our official distributors.
SPECIFICATIONS:

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MANUFACTURER´S DECLARATIONS:
LIMITATION OF LIABILITY
If your Adam Hall branded hardware product fails to work as warranted above, your sole and exclusive remedy
shall be repair or replacement. Adam Halls’ maximum liability under this limited warranty is expressly limited to
the lesser of the price you have paid for the product or the cost of repair or replacement of any components that
malfunction under conditions of normal use.
Adam Hall is not liable for any damages caused by the product or the failure of the product, including any lost
profits or savings or special, incidental, or consequential damages. Adam Hall is not liable for any claim made by
a third party or made by you for a third party.
This limitation of liability applies whether damages are sought, or claims are made, under this Limited Warranty
or as a tort claim (including negligence and strict product liability), a contract claim, or any other claim, and
cannot be rescinded or changed by anyone. This limitation of liability will be effective even if you have advised
Adam Hall or an authorized representative of Adam Hall of the possibility of any such damages, but not, however,
in the event of claims for damages in connection with personal injuries.
This manufacturer‘s warranty grants you specific rights; depending on jurisdiction (nation or state), you may be
be entitled to additional claims. You are advised to consult applicable state or national laws for a full determina-
tion of your rights.
REQUESTING WARRANTY SERVICE
To request warranty service for the product, contact Adam Hall or the Adam Hall authorized reseller from which
you purchased the product.
EC DECLARATION OF CONFORMITY
The equipment marketed by Adam Hall complies (where applicable) with the essential requirements and other
relevant specifications of Directives 1999/5/EC (R&TTE), 2004/108/EC (EMC) und 2006/95/EC (LVD). Additional
information can be found at www.adamhall.com.

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MANUFACTURER´S DECLARATIONS:
PROPER DISPOSAL OF THIS PRODUCT
(Valid in the European Union and other European countries with waste separation)
This symbol on the product, or the documents accompanying the product, indicates that this appliance may not
be treated as household waste. This is to avoid environmental damage or personal injury due to uncontrolled
waste disposal. Please dispose of this product separately from other waste and have it recycled to promote
sustainable economic activity.
Household users should contact either the retailer where they purchased this product, or their local government
office, for details on where and how they can recycle this item in an environmentally friendly manner.
Business users should contact their supplier and check the terms and conditions of the purchase contract. This
product should not be mixed with other commercial wastes for disposal .
ENVIRONMENTAL PROTECTION AND ENERGY CONSERVATION
Energy conservation is an active contribution to environmental protection. Please turn off all unneeded electrical
devices. To prevent unneeded devices from consuming power in standby mode, disconnect the mains plug.
Adam Hall GmbH, all rights reserved. The technical data and the functional product characteristics can be subject
to modifications. The photocopying, the translation, and all other forms of copying of fragments or of the integrlity
of this user’s manual is prohibited.

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Sie haben die richtige Wahl getroffen!
Dieses Gerät wurde unter hohen Qualitätsanforderungen entwickelt und gefertigt, um viele Jahre einen reibungs-
losen Betrieb zu gewährleisten. Dafür steht LD Systems mit seinem Namen und der langjährigen Erfahrung als
Hersteller hochwertiger Audioprodukte.
Bitte lesen Sie diese Bedienungsanleitung sorgfältig, damit Sie Ihr neues Produkt von LD Systems schnell optimal
einsetzen können.
Mehr Informationen zu LD SYSTEMS finden Sie auf unserer Internetseite WWW.LD-SYSTEMS.COM
Einführung
Die überragende Leistung der LD Systems DDQ-Serie ist das Resultat einer präzisen Konzeption und perfekten
Ausstattung, die nur Bestnoten verdient.
Der DDQ15 Aktiv-Lautsprecher ist mit einem Tief/Mitteltönern von Faital Pro und einem BMS Hochtontreiber
bestückt. Diese werden von zwei Hypex UCD700 700W-Endstufenmodulen separat angesteuert.
Das Signal bearbeitet ein eigens für die DDQ-Aktivsysteme programmierter Sharc DSP, dessen Wandler einen
beachtlichen Dynamikumfang von 127dB besitzen. Er übernimmt sämtliche Schutzfunktionen, wobei der
vorausschauende Peak Limiter besonders hervorgehoben werden muss. Er sorgt mit einer Look Ahead-Zeit von
1 Millisekunde für eine absolut verzerrungsfreie Wiedergabe selbst bei höchsten Lautstärken. Die Bassreflex-
konstruktion des Aktiv-Lautsprechers ist aus Multiplex gefertigt. Dank der innovativen Evolutive-Griffe und des
vergleichsweise geringen Gewichts ist er zudem bequem zu transportieren.
Der DDQ15 Aktiv-Lautsprecher ist für alle PA-Anwendungen konzipiert: für den mobilen Einsatz, zur Festinstallation,
in Kompaktanlagen, FOH-Systemen oder Verzögerungslinien und Dank des integrierten 50°-Winkel auch als Bühnen-
monitor einzusetzen. Alle DDQ-Systeme werden in Deutschland gefertigt!