Introduction - LD Systems DSP 44 K Manuel D'utilisation

The warning triangle with lightning symbol indicates dangerous uninsulated voltage inside the unit, which may cause an
electrical shock.
The warning triangle with exclamation mark indicates important operating and maintenance instructions.
Warning! This symbol indicates a hot surface. Certain parts of the housing can become hot during operation. After use, wait for
a cool-down period of at least 10 minutes before handling or transporting the device.
Warning! This device is designed for use below 2000 metres in altitude.
Warning! This product is not intended for use in tropical climates.
CAUTION! HIGH VOLUMES IN AUDIO PRODUCTS!
This device is meant 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.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.

INTRODUCTION

The LD Systems DSP 44 K and DSP 45 K are designed to meet the very highest audio demands in terms of performance and functional
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reliability. The professional 4-channel power amplifiers feature an extensive range of DSP functions (DSP 44 K with Dante™ interface),
delivering stunning performance and uncompromising sound quality with an output of 1,200 watts per channel and 2 x 2,400 watts bridged.
The high-efficiency Class H topology with switching power supply and power factor correction (PFC) provide a wide dynamic range and
excellent impulse fidelity. The power amplifiers are equipped with a soft starter and comprehensive circuitry protection, including DC,
overcurrent, thermal and short circuit protection. Additional protection is provided by two limiters preventing power supply overload and
power amplifier clipping, as well as by both temperature-controlled fans. These ensure exceptional operational safety even under extreme
conditions. The 24-bit DSP allows precise control with FIR and IIR filters, parametric EQ, crossover, delay, RMS and peak limiters. User-con-
figurable loudspeaker presets with password protection enable fast set-up. Both power amplifiers sport a menu driven 4-line display and
rotary encoder with push button switch for easy configuration. The Dante™ interface (in the DSP 44 K) allows instant integration in Dante™
networks, while the software included enables computer control and monitoring. The LD Systems
are housed in a dual rack space all-steel chassis and weigh just 7 kg. They provide balanced Neutrik
tors plus USB and Ethernet ports. The preset library ensures optimum performance and safe operation of LD Systems
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CAUTION:
To reduce the risk of electric shock, do not remove cover (or back). There are no user serviceable parts
inside. Maintenance and repairs should be exclusively carried out by qualified service personnel.
DSP 44 K and DSP 45 K power amplifiers
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XLR inputs, speakON output connec-
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loudspeakers.
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