LD Systems SP 44K

The LDSP44K is a professional 4-channel power amplifier offering amazing value and versatility in a compact lightweight Class H design. Suitable for touring and installation sound reinforcement it delivers a maximum of 4x 980W into 2Ohms and 2x 1.960 in 4Ohms stereo bridge mode.

Featuring a high efficiency switch mode power supply the LDSP44K provides a 20Hz - 20kHz bandwidth with low THD and crosstalk, a damping factor higher than 500, excellent S/N ratio and 3 switchable sensitivity levels.

Reliable performance is ensured by heavy duty engineering, high quality components and comprehensive protection including soft start with turn-on muting, PMS™ power management, SSP™ (Safe operation Sentry Protection) and ICL™ (Intelligent Clip Limiting) to maintain signal integrity. Protection circuits against DC, thermal and power supply overload are implemented. A switchable subsonic filter and a 3-position gain switch offer variable amplifier adjustment.

• Product type Power Amplifiers
• Weight 8,5 kg
• Height 89 mm
• Width 483 mm
• Depth 310 mm
• Frequency response 20 - 20000 Hz
• Type PA Power Amplifiers
• Controls bridge/stereo mode selector, dual/link switch, gain, mains switch (on/off), volume
• Operating voltage 220 V AC - 240 V AC, 50-60 Hz
• Indicators ICL (Intelligent Clip Limiting), PMS, Signal, temperature
• THD < 0.05 %
• Signal-to-noise ratio 113 dB
• Crosstalk >75 dB
• Protection circuits DC, ICL (Intelligent Clip Limiting), mute when turning on, Open or mismatched loads, PMS, power supply overload, short circuit, soft start, SSP, thermal protection
• Input sensitivity 3.0 / 1.5 / 0.8 V
• Cooling 2 fans, continuous speed
• Loudspeaker outputs 4
• Speaker output connections Speakon
• Rated ouput power (1kHz @ 4 Ohms) 4 x 670 W
• Rated ouput power (1kHz @ 8 Ohms) 4 x 430 W
• Output circuitry Class H
• Rated ouput power (1kHz @ 8 Ohms, bridged) 2 x 1340 W
• Gain 26 / 32 / 38 dB
• Power consumption @ full load 13.май
• Rated ouput power (1kHz @ 2 Ohms) 4 x 980 W
• Rated ouput power (1kHz @ 4 Ohms, bridged) 2 x 1960 W
• Damping factor > 500