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Warranty: 1 Year Manufacturer's Singapore Warranty

Shipping Time: 7-14 Business Days

SKU: LDSystemsSP46K

LD Premium LDSP46K 4-Channel Power Amplifier

LD Systems SP46K Features

The LDSP46K is a no-compromise 4-channel power amplifier providing professional
performance and versatility in
a compact switch mode power supply Class H design.

With a massive output of 4x 1.440W into 2Ohms and 2x 2.880 in 4Ohms stereo bridge
mode it is an extremely efficient
solution for touring and installation sound reinforcement
weighing in at a mere 8.6kg.

Consistent operation is ensured by the heavy duty construction with high quality components and
comprehensive protection circuitry 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.

The LD SP46K features a full 20Hz - 20kHz bandwidth with low THD and crosstalk,
a damping factor higher than 500, excellent S/N ratio and 3 selectable gain/sensitivity levels.


Product number: LDSP46K
Product type: power amplifier
Type: 4-channel
Rated ouput power (1kHz @ 2 Ohms): 4 x 1440W
Rated ouput power (1kHz @ 4 Ohms): 4 x 1000W
Rated ouput power (1kHz @ 8 Ohms): 4 x 620W
Rated ouput power (1kHz @ 4 Ohms, bridged): 2 x 2880W
Rated ouput power (1kHz @ 8 Ohms, bridged): 2 x 2000W
Output circuitry: Class H
Frequency response: 20 - 20000Hz
THD: < 0.05 %
Signal-to-noise ratio: 116dB
Damping factor: > 500
Crosstalk: >75dB
Gain: 26 / 32 / 38dB
Input sensitivity: 3.5 / 1.8 / 0.9V

Protection circuits: soft start, short circuit, DC, mute when turning on, thermal protection,
PMS, power supply overload,
ICL (Intelligent Clip Limiting), Open or mismatched loads, SSP

Controls: mains switch (on/off), dual/link switch, volume, gain, bridge/stereo mode selector
Indicators: PMS, ICL (Intelligent Clip Limiting), signal, temperature
Loudspeaker outputs: 4
Speaker output connections: Speakon
Cooling: 2 fans, continuous speed
Operating voltage: Switching Power Supply, 220 V AC - 240 V AC, 50-60 Hz
Power consumption @ full load: 19
Manufacturer LD Systems
  • LD Systems SP46K PA POWER AMPLIFIER 4 X 1440 W 2 OHM
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