LD Systems DDQ 12

LD Systems

Quality 1 millisecond ahead ‰Û_ the LD Systems DDQ 12 active speaker.

The LD Systems DDQ 12 is an extremely high-performance 2-way active speaker for compact systems, FOH and monitor applications, delay lines, and permanent installations. The groundbreaking design and comprehensive features with leading components ensure superior performance in its class.

Trouble-free operation of the DDQ 12 is ensured by a specially programmed Sharc DSP with 24-bit/48-kHz converters that have remarkable dynamics of 127dB. It incorporates volume control, delay, EQ, crossover, phase, and all protection functions for the drivers and power amps. Heat sinks and a silent fan provide additional protection against overheating. The decisive advantage is attained by a predictive peak limiter with a look-ahead time of 1 millisecond. It guarantees absolute freedom from distortion even at maximum volume.

The DDQ 12 is loaded with a 12‰Û Faital Pro PR300 neodymium woofer and a BMS tweeter. The asymmetrical tweeter horn offers optimal, even sound level distribution from the very first to the very last row of the audience. Its design ensures extraordinarily dynamic, linear reproduction up to 20 kHz. The two drivers are powered separately by two Class D Hypex UCD400 power stage modules with an output of 800W RMS. They have a load-controlled, linear frequency response and extremely low total harmonic distortion with extremely low noise and, thanks to their switching power supply, maximum efficiency. The maximum sound pressure level of the DDQ 12 is 134 dB with a dispersion angle of 80å¡ x 50å¡; the horizontal sound distribution is characterized by extraordinary symmetry.

The input, link, and switchable subwoofer output of the DDQ 12 take the form of XLR sockets. A ground lift switch eliminates ground loop hum, and the system functions are indicated by LEDs.

The sturdy bass-reflex enclosure is made of 15mm birch plywood with a polyurethaned coating and a front grille made of steel. There is an integral 50å¡ angle for use as a floor monitor and the tweeter horn can be turned accordingly. It has an adjustable tilt stand mount. The innovative Evolutive handles and the low weight facilitate transport. The DDQ 12 active system is made in Germany.


Product type PA loudspeaker
Type Powered
Design DSP controlled
Low/mid driver dimensions 12 “
Woofer size 305 mm
Low/mid driver magnet Neodymium
Low/mid driver brand Faital Pro
Low/mid driver voice coil 2.5 “
Low/mid driver voice coil 63.5 mm
Tweeter dimensions 1 “
Tweeter dimensions (mm) 25.4 mm
Tweeter magnet ceramic
Tweeter brand BMS
Tweeter voice coil 1 “
Tweeter voice coil (mm) 25.4 mm
Amplifier 2 x Class D, Hypex Ucd400
Dispersion (H x V) 80 x 50 å¡
System Power (RMS) 800 (2 x 400) W
Frequency response 54 – 20000 Hz
Crossover frequency 1500 Hz
Max. SPL (continuous) 121 dB
Max. SPL (peak) 134 dB
Integrated media player no
Protection circuits DSP-based “look ahead” limiter
Protection circuits over voltage
Protection circuits over-current
Protection circuits RMS power supply limiter
Protection circuits RMS speaker limiter
Controls Gain
Controls ground lift
Controls mains switch (on/off)
Controls X-Over Sub
Indicators Operate
Indicators Peak Limiter
Indicators Signal
Indicators X-Over Sub
Line inputs 1
Line input connectors XLR
Line outputs 2
Line output connectors XLR
Operating voltage Switching power supply
Operating voltage 180 – 264 V AC, 47 – 63 Hz
Cabinet material 15 mm Birch Plywood
Cabinet surface Polyurea
Cabinet construction Bass Reflex
Monitor angle 50 å¡
Width 360 mm
Height 600 mm
Depth 378 mm
Weight 17 kg
Features *Short Term Max. SPL Peak @ 1m with Pink Noise
Features SM707 stand mount 36 mm

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