LD SYSTEMS LDSP46K SP 46K – PA Power Amplifier 4 x 1440 W 2 Ohm

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LD Premium LDSP46K 4-Channel Power Amplifier 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 […]

 

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LD Premium LDSP46K 4-Channel Power Amplifier

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 LDSP46K features a full 20Hz – 20kHz bandwidth with low THD and crosstalk, a damping factory higher than 500, excellent S/N ratio and 3 selectable gain/sensitivity levels.

  • Type: Professional Power Amplifier
  • Model Name: SP46K
  • Output Power 1 kHz,
  • 2 ohms 4 x 1440 W
  • 4 ohms 4 x 1000 W
  • 8 ohms 4 x 620 W
  • Bridge 4 ohms 2 x 2880 W
  • Bridge 8 ohms 2 x 2000 W
  • Output Circuity: Class H
  • Frequency Range: 20 Hz – 20 kHz
  • THD:
  • S/N Ratio: 116 dB
  • Damping Factor: >500
  • Crosstalk: > 75 dB
  • Voltage Gain: 26 / 32 / 38 dB
  • Input Sensitivity: 3.5 / 1.8 / 0.9 V
  • Input Impedance:  20k ohm (balanced) / 10k ohm (unbalanced)
  • Protection: Soft-start, Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short circuit, Open or mismatched loads, Overloaded power supply, ICL Clip Limiter, PMS, SSP
  • Controls: On/Off, Volume, Voltage Gain, Dual / Link switchable, Bridge / Stereo configuration switch
  • Indicators: Signal, Temp, PMS (Power Management System), ICL (Intelligent Clip Limiting)
  • Connectors: Input: XLR / Output: Neutrik Speakon
  • Cooling System: 2 x continuously variable speed fan, rear to front
  • Power Supply: AC~230V / 50 Hz
  • Power Consumption Full Load: 19 A
  • Dimensions (W x H x D): 483 x 89 x 310 mm
  • Weight 8.60 kg

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    Description
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    LD Premium LDSP46K 4-Channel Power Amplifier

    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 LDSP46K features a full 20Hz – 20kHz bandwidth with low THD and crosstalk, a damping factory higher than 500, excellent S/N ratio and 3 selectable gain/sensitivity levels.

    • Type: Professional Power Amplifier
    • Model Name: SP46K
    • Output Power 1 kHz,
    • 2 ohms 4 x 1440 W
    • 4 ohms 4 x 1000 W
    • 8 ohms 4 x 620 W
    • Bridge 4 ohms 2 x 2880 W
    • Bridge 8 ohms 2 x 2000 W
  • Output Circuity: Class H
  • Frequency Range: 20 Hz - 20 kHz
  • THD:
  • S/N Ratio: 116 dB
  • Damping Factor: >500
  • Crosstalk: > 75 dB
  • Voltage Gain: 26 / 32 / 38 dB
  • Input Sensitivity: 3.5 / 1.8 / 0.9 V
  • Input Impedance:  20k ohm (balanced) / 10k ohm (unbalanced)
  • Protection: Soft-start, Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short circuit, Open or mismatched loads, Overloaded power supply, ICL Clip Limiter, PMS, SSP
  • Controls: On/Off, Volume, Voltage Gain, Dual / Link switchable, Bridge / Stereo configuration switch
  • Indicators: Signal, Temp, PMS (Power Management System), ICL (Intelligent Clip Limiting)
  • Connectors: Input: XLR / Output: Neutrik Speakon
  • Cooling System: 2 x continuously variable speed fan, rear to front
  • Power Supply: AC~230V / 50 Hz
  • Power Consumption Full Load: 19 A
  • Dimensions (W x H x D): 483 x 89 x 310 mm
  • The S Series of RAM Audio amplifiers distils all these features to fulfill all your needs, whether youʼre starting a P.A. amplifier project from scratch, or you need to upgrade your present sound reinforcement equipment.

    In the S Series amps, you'll find five 2-channel models and five 4-channel models, all offering plentiful power levels at low distortion in the range of 1.5 to 6 kilowatts, yet weighing in around 8 kilos and 30 cm deep.

    • Ultra-compact and lightweight 2-U high
    • Laser cut aluminum front panels with integrated carrying handles
    • Neutrik® XLR input connectors, input and signal link in 2 channel models
    • Input Link switch: allow daisy-chaining of the input signal
    • Neutrik® Speakon® output connectors
    • Detented sealed potentiometers for easy recall of volume settings
    • ICL™, PMS™, Hi-temp, Signal indicators per channel
    • Power on and Stand-by leds
    • Highly versatile with multiple configuration and additional module options
    • Full PC control via EtheRAM (with EtheRAM Control module)
    • Switchable ICL™ clip-limiters per channel
    • Switchable (30-50 Hz) sub-sonic highpass filter per channel
    • Three-position gain selector (26, 32 or 38 dB)
    • Dual or bridge mode selector
    • Twin temperature controlled, back to front cooling fans
    • Oversized power components (high SOA reserve specification)
    Standard Signal Inputs Module: The S Series amps are equipped as standard with twin Neutrik® XLR, doubled by two other XLR connectors for linking purposes. In the 4 Channel models an XLR input per channel is provided with the signal linking facility.

    Analog Processor Module: permits a very easy, user-friendly signal processing to enable the amp to set up a bi-amp system without any other outboard device. These are the Processor's main characteristics:
    • 2-way stereo crossover (dual mono or single bridged sub output)
    • 24dB/oct Linkwitz-Riley configurable crossover (90, 100 o 120Hz)
    • Adjustable attenuation in the High-pass outputs (-3, -6 or -9dB)
    • Adjustable Limiter, relative to Max. Output (-3, -6 or -9dB)

    DSP44_S Module: Digital Signal Processor fully programmable through an USB port. These are the Processor's main characteristics:
    • 4 Inputs/4 Outputs or 2 In/2 Out free route configurable.
    • 24 bits/192 kHz 256x Oversampling Converters.
    • Output Delay: 0 to 7.1 meters (20.69ms) per channel.
    • XOver: Up to 48dB/oct Butterworth, Linkwitz-Riley and Bessel.
    • EQ: 9 filters per channel (Parametric, Shelving, LP,HP,BP,SB).
    • Gain, Mute and Phase inversion per channel.
    • RMS Power and Peak Voltage output limiter per channel.
    • Real Time operation from USB or front panel configuration.

    Standard Signal Inputs Module
    EtheRAM Control Module
    Ethernet Audio Transport (Coming soon)
    Analog Processor Module
    DSP44_S Module
    EtheRAM Control Module
    AES/EBU Digital Input (Coming soon)

    back_s_l

    OUTPUT POWER S-1500 S-2000 S-3000 S-4000 S-6000 S-3004 S-4004 S-4044 S-6004 S-6044
    1kHz, 1.0% THD
    2 ohms 2x880W 2x1190W 2x1570W 2x1950W 2x2950W 4x700W 4x980W - 4x1440W -
    4 ohms 2x575W 2x790W 2x1100W 2x1380W 2x2025W 4x500W 4x670W 4x975W 4x1000W 4x1480W
    8 ohms 2x325W 2x460W 2x630W 2x810W 2x1250W 4x300W 4x430W 4x690W 4x620W 4x1015W
    Bridge @ 4ohms 1760W 2380W 3140W 3900W 5900W 2x1400W 2x1960W - 2x2880W -
    Bridge @ 8ohms 1150W 1580W 2200W 2760W 4050W 2x1000W 2x1340W 2x1950W 2x2000W 2x2960W
    P. N. 12dB C.F.
    2 ohms 2x975W 2x1360W 2x2060W 2x2460W 2x4225W 4x890W 4x1170W - 4x2080W -
    4 ohms 2x610W 2x880W 2x1240W 2x1600W 2x2600W 4x580W 4x820W 4x1230W 4x1280W 4x2110W

    Frequency Response (power bandwidth ±0.25dB): 20Hz-20kHz
    Phase Response (@1W 20Hz-20kHz): ±15deg
    Total Harmonic Distortion (20Hz-20kHz): Intermodulation Distortion (SMPTE): Crosstalk (20Hz-20kHz): >75dB
    Voltage Gain (selectable): 26/32/38 dB
    Sensitivity: 1500:2.6/1.3/0.6V 2000:3.0/1.5/0.8V 3000:3.6/1.8/0.9V 4000:4.0/2.0/1.0V 6000:5.0/2.5/1.3V
    3004:2.6/1.3/0.6V 4004:3.0/1.5/0.8V 4044:3.7/1.9/0.9V 6004:3.5/1.8/0.9V 6044:5.0/2.5/1.3V
    Signal to noise ratio: 1500:112dB 2000:113dB 3000:115dB 4000:116dB 6000:118dB
    3004:112dB 4004:113dB 4044:116dB 6004:116dB 6044:118dB
    Required AC Mains (@4ohms 1/8 r.p.): 1500:4A 2000:4.8A 3000:6.2A 4000:7.5A 6000:10.5A
    3004:6A 4004:7.5A 4044:11A 6004:10.5A 6044:15A
    Dimensions (WxHxD): 483x88.9x310 mm - 19x3.5x12.2 inches
    Weight (Net): 1500/2000: 8Kg - 17.6Lbs 3000/4000/3004/4004/4044: 8.5Kg-18.7Lbs 6000/6004/6044: 8.6Kg-18.9Lbs

    Protections: Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply,ICL™, PMS™, SSP™

    mplifier Gain 32 dB (Lo-Z), 33 dB (70V), 36 dB (100V)
    Analog Inputs 4, electronically balanced, Phoenix-type
    Audio Network No
    CAN Bus Interface Yes (With Optional RCM-810 Card)
    Continuous Rated Power
    (1 kHz, THD 1%) 100v 500 Watts
    Continuous Rated Power
    (1 kHz, THD 1%) 2Ω 500 Watts
    Continuous Rated Power
    (1 kHz, THD 1%) 4Ω 500 Watts
    Continuous Rated Power
    (1 kHz, THD 1%) 70v 500 Watts
    Continuous Rated Power
    (1 kHz, THD 1%) 8Ω 250 Watts
    Continuous Rated Power
    (20-20 kHz, THD Continuous Rated Power
    (20-20 kHz, THD Continuous Rated Power
    (20-20 kHz, THD Continuous Rated Power
    (20-20 kHz, THD Cooling Front-to-Rear, continuously variable fans
    DIM 30 0.02 %
    Electronics Type Amplifier
    Frequency Response 15 Hz-30 kHz
    Input Impedance (Balanced) 20 kΩ
    Input Sensitivity 0 dBu (.775V)-2 Ω, +3 dBu (1.1V)-4/8 Ω, +6 dBu (1.55) 70V/100V
    Intermodulation Distortion (SMPTE) 0.05 %
    Mains Voltage 220 - 240 V, 50 - 60 Hz or 120 V, 50 - 60 Hz, 50 - 60 Hz
    Maximum Bridged Output 4Ω 1000 Watts
    Maximum Bridged Output 8Ω 1000 Watts
    Network Control (IRIS-Net) Optional
    Slew Rate 28 V/µs
    Total Harmonic Distortion 0.05 %
    Variable Load Drive (VLD) Yes
    Height 2RU 88.1 mm (3.47“)
    Width 481 mm (18.94“)
    Depth 421.5 mm (16.59“)
    Weight Net 11.1 kg (24.47 lbs)

    aposirsi_electrovoice     * Weight: 18 kg / 39.65 lbs


    Model    CT475
    Product Type    Amplifier
    Channels    4
    Sensitivity    1.4V
    Rated Power Output    75W per Channel into 8 ohms
    Signal to Noise Ratio (below rated power 20Hz to 20kHz, A-Weighted    110dB
    Total Harmonic Distortion (THD) (full rated power, 20Hz - 20kHz)    Intermodular Distortion (from 0dB down to -40dB)    Frequency Response (at 1W into 4/8 ohms)    ± 0.5dB
    Crosstalk (below rated power 20Hz to 1kHz)    > 70dB
    Common Mode Rejection (20Hz to 1kHz)    > 55dB, typically > 70dB
    Dimension (H x W x D)    1.75" x 19" x 14.25“
    Weight    10 lbs (4.5 kg)
    Shipping Weight    15 lbs (6.8 kg)
          Top

    Weight8.608.5011.1012.0018.006.80DimensionsN/AN/AN/AN/AN/AN/AAdditional information
    Weight 8.60 kg
    Weight 8.50 kg
    Weight 11.10 kg
    Weight 12.00 kg
    Weight 18.00 kg
    Weight 6.80 kg