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 a 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.
Features
- 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