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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