DSP 45 K

DSP 45 K

4-Channel Power Amplifier with DSP

Item no.: LDDSP45K

Guarantee: 24 months

EAN: 4049521207259

Sliding scale: 1

Unit: Piece

Packaging unit: 1

Series:DSP

Versions:

Item highlights:

  • 4-channel power amplifier with DSP control
  • 4 x 1200 watts @ 4 and 2 ohms, 2 x 2400 watts bridged @ 4 ohms
  • 10 Hz - 22 kHz frequency response with 120 dB dynamic range
  • 24-bit/48kHz DSP with FIR and IIR filters, parametric EQ, crossover, delay, RMS and peak limiters
  • DC, overcurrent, thermal and short circuit protection, soft start, clip and SMPS overload limiters
  • Dual temperature-controlled fans
  • Power factor correction (PFC)
  • Menu driven 4-line display with rotary encoder and security lock
  • Includes control and monitoring software and LD Systems® Loudspeaker Preset Library

Specifications

Product type
Power Amplifiers
Type
4-channel
Rated ouput power (1kHz @ 2 Ohms)
4 x 1200 W
Rated ouput power (1kHz @ 4 Ohms)
4 x 1200 W
Rated ouput power (1kHz @ 8 Ohms)
4 x 675 W
Rated ouput power (1 kHz @ 4 Ohms, bridged)
2 x 2400 W
Rated ouput power (1kHz @ 8 Ohms, bridged)
2 x 1200 W
High Z 70Vrms / 100Vpeak
4 x 1200
High Z 100Vrms / 140Vpeak
2 x 2400
Output circuitry
Class H
Frequency response
10 - 40000
Total Harmonic Distortion (THD)
< 0.05 % @ 1 kHz
Signal-to-noise ratio
104 dB
Protection circuits
Thermal protection, over-current, DC protection, RMS speaker limiter, clip limiter, soft start, Short circuit, Multiband limiter
Controls
knob, On / off switch, Direct access buttons, Exit / lock button
Indicators
LC display
Line inputs
4
Line input connectors
Neutrik XLR
Line outputs
4
Line output connectors
Neutrik XLR
Loudspeaker outputs
4
Speaker output connections
Speakon
Cooling
2 fans, temperature controlled
Maximum Ambient Temperature
0 - 40 °C
Power supply
100 V AC - 240 V AC, 50 - 60 Hz, Switching power supply
Relative Humidity
< 80% (non-condensing)
Power consumption @ full load
1900 W
Width
482 mm
Height
89 mm
Depth
320 mm
Weight
7,9 kg
Features
19" / 2 U, DSP controlled, Active Power Factor Correction

Description

DSP 45 K

The LD Systems® DSP 45 K is a professional 4-channel power amplifier with extensive DSP control. Designed for demanding large-scale sound reinforcement and concert-quality performance, it delivers a massive 1,200 watts per channel and 2 x 2,400 watts bridged. The high-efficiency Class H topology and switch mode power supply with power factor correction (PFC) provide a wide dynamic range and excellent transient response.

The DSP 45 K features comprehensive protection circuitry including power-up, DC, overcurrent, thermal and short circuit protection plus current and clip limiters to prevent SMPS overload and loudspeaker damage. Together with a pair of temperature controlled fans, they ensure exceptional reliability in the most demanding applications. The 24-bit DSP allows precise control with FIR and IIR filters, parametric EQ, crossover, delay, RMS and peak limiter functions. User configurable loudspeaker presets with password protection enable fast setup

The DSP 45 K is housed in a dual rack space all-steel chassis and weighs just 7 kg. It provides balanced Neutrik® XLR inputs, speakON® output connectors plus USB and Ethernet ports. The front panel sports a menu driven 4-line display and rotary encoder with push button switch for easy configuration. For optimal speaker performance and safe operation the DSP 45 K comes with an LD Systems® loudspeaker preset library, and the included software enables computer control and monitoring.

Accessories

Downloads

Manuals
Software
Presets, Libraries & Settings
Images & Artwork
Catalogues & Publications
Service & Regulation Documents
Display all
Name
Type
Format
File size
LDDSP45K User Manual User Manual.pdf6.28 MB
LDDSP45K User Manual User Manual.pdf5.22 MB
LD Systems REACh Declaration Adam Hall GmbHREACh Declaration.pdf493.71 KB
LDDSP45K Software Software.zip10.46 MB
LD Systems RoHS Confirmation Adam Hall GmbHRoHS Confirmation.pdf197.63 KB
LDDSP45K Loudspeaker Presets Loudspeaker Presets.zip665.07 KB
LD Systems Catalogue / Brochure Highlight Brochure InstallCatalogue / Brochure.pdf6.51 MB
LD Systems Catalogue / Brochure Adam Hall Group Product Highlights Spring/Summer 2025Catalogue / Brochure.pdf24.23 MB
LD Systems Catalogue / Brochure Highlight Brochure DJ & MusicCatalogue / Brochure.pdf4.4 MB
LD Systems Manufacturer's Declaration LD-SYSTEMSManufacturer's Declaration.pdf66.91 KB
Product ImagesImages & Artwork.zip-

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