LD SYSTEMS LDSP44K SP 44K – PA Power Amplifier 4 x 980 W 2 Ohm

2,530.07 incl. GR VAT

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LD Premium LDSP44K 4-Channel Power Amplifier 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 […]

 

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LD Premium LDSP44K 4-Channel Power Amplifier

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.

  • Type: Professional Power Amplifier
  • Model Name: SP44K
  • Output Power 1 kHz,
  • 2 ohms 4 x 980 W
  • 4 ohms 4 x 670 W
  • 8 ohms 4 x 430 W
  • Bridge 4 ohms 2 x 1960 W
  • Bridge 8 ohms 2 x 1340 W
  • Output Circuity: Class H
  • Frequency Range: 20 Hz – 20 kHz
  • THD:
  • S/N Ratio: 113 dB
  • Damping Factor: >500
  • Crosstalk: > 75 dB
  • Voltage Gain: 26 / 32 / 38 dB
  • Input Sensitivity: 3.0 / 1.5 / 0.8 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: 13.5 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 LDSP44K 4-Channel Power Amplifier

    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.

    • Type: Professional Power Amplifier
    • Model Name: SP44K
    • Output Power 1 kHz,
    • 2 ohms 4 x 980 W
    • 4 ohms 4 x 670 W
    • 8 ohms 4 x 430 W
    • Bridge 4 ohms 2 x 1960 W
    • Bridge 8 ohms 2 x 1340 W
  • Output Circuity: Class H
  • Frequency Range: 20 Hz - 20 kHz
  • THD:
  • S/N Ratio: 113 dB
  • Damping Factor: >500
  • Crosstalk: > 75 dB
  • Voltage Gain: 26 / 32 / 38 dB
  • Input Sensitivity: 3.0 / 1.5 / 0.8 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: 13.5 A
  • Dimensions (W x H x D): 483 x 89 x 310 mm
  • • Eight and four channel models with 300W and 150W per channel • Minimal footprint and mass arround 200mm depth and 6 Kg • Optional Add-on card to interface with third party alarm systems with GPIO connections • FCM™ Faulty Channel Management system to avoid entire device shutdown • State-of-the-art layout for maximum performance and reliability • Highly oversized thermal dissipation design for maximum reliability • Superb distortion and noise figures • All channels bridgeable by pairs • Selectable gain in four channel groups (26, 32 and 38dB) • Subsonic filter per channel (35Hz user selectable) • Temperature and signal dependant, intelligent cooling system for minimal noise • Optimal heat extraction due to the air tunneled enclosure and insulator-less power device attachment to the heatsink • Direct connector-less output for maximum quality loudspeaker control • High grade engineering inside with the latest SMD technology • Balanced Inputs with 0.1% tolerance resistors for a precise noise rejection • Critical electronic and mechanical parts selection • Innovative protection systems, FCM™ Faulty Channel Management and SSP™ SOA Sentry Protection • Detented and optionally tamper-proof volume potentiometers • Hi efficiency, two steps Class H Audio topology • Protection, Signal and Clip indicators per channel • Power On and Standby general indicators • Extremely compact, fully featured QuantaPulse Power supply • Low current consumption and heat generation allowing less demanding conditions for multiple amplifier installations • Factory preset worldwide mains voltage power supply • Laser cut four milimeters aluminium front panel • Rugged 2U steel chasis   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): >70dB Voltage Gain (selectable): 26/32/38 dB Sensitivity: T604:1.5/0.8/0.4V - T1204:2.1/1.0/0.5V - T1208:1.4/0.7/0.4V - T2408:2.0/1.0/0.5V Signal to noise ratio: T604:107dB - T1204:110dB - T1208:107dB - T2408:110dB Required AC Mains (@8ohms 1/8 rated power): T604:1A - T1204:1.5A - T1208:1.4A - T2408:2.6A Dimensions (WxHxD): 483x88.9x210 mm - 19x3.5x8.27 inches Weight (Net): T604/T1204: 5.4Kg - 11.8Lbs T1208/T2408: 6.2Kg-13.5Lbs Protections: Soft-start, Turn-on Turn-off muting, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, SSP™ and FCM™
    OUTPUT POWER T-604 T-1204 T-1208 T-2408
    RMS, 1kHz, 1.0% THD+N
    4 ohms 4x 160 W 4x 320 W 8x 150 W 8x 300 W
    8 ohms 4x 115 W 4x 220 W 8x 100 W 8x 195 W
    Bridge @ 8ohms 2x 320 W 2x 640 W 4x 300 W 4x 600 W
    Pink Noise 12dB CF
    4 ohms 4x 210 W 4x 415 W 8x 180 W 8x 370 W
     
     
    • Eight and four channel models with 300W and 150W per channel • Minimal footprint and mass arround 200mm depth and 6 Kg • Optional Add-on card to interface with third party alarm systems with GPIO connections • FCM™ Faulty Channel Management system to avoid entire device shutdown • State-of-the-art layout for maximum performance and reliability • Highly oversized thermal dissipation design for maximum reliability • Superb distortion and noise figures • All channels bridgeable by pairs • Selectable gain in four channel groups (26, 32 and 38dB) • Subsonic filter per channel (35Hz user selectable) • Temperature and signal dependant, intelligent cooling system for minimal noise • Optimal heat extraction due to the air tunneled enclosure and insulator-less power device attachment to the heatsink • Direct connector-less output for maximum quality loudspeaker control • High grade engineering inside with the latest SMD technology • Balanced Inputs with 0.1% tolerance resistors for a precise noise rejection • Critical electronic and mechanical parts selection • Innovative protection systems, FCM™ Faulty Channel Management and SSP™ SOA Sentry Protection • Detented and optionally tamper-proof volume potentiometers • Hi efficiency, two steps Class H Audio topology • Protection, Signal and Clip indicators per channel • Power On and Standby general indicators • Extremely compact, fully featured QuantaPulse Power supply • Low current consumption and heat generation allowing less demanding conditions for multiple amplifier installations • Factory preset worldwide mains voltage power supply • Laser cut four milimeters aluminium front panel • Rugged 2U steel chasis    
    OUTPUT POWER T-604 T-1204 T-1208 T-2408
    RMS, 1kHz, 1.0% THD+N
    4 ohms 4x 160 W 4x 320 W 8x 150 W 8x 300 W
    8 ohms 4x 115 W 4x 220 W 8x 100 W 8x 195 W
    Bridge @ 8ohms 2x 320 W 2x 640 W 4x 300 W 4x 600 W
    Pink Noise 12dB CF
    4 ohms 4x 210 W 4x 415 W 8x 180 W 8x 370 W
    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): >70dB Voltage Gain (selectable): 26/32/38 dB Sensitivity: T604:1.5/0.8/0.4V - T1204:2.1/1.0/0.5V - T1208:1.4/0.7/0.4V - T2408:2.0/1.0/0.5V Signal to noise ratio: T604:107dB - T1204:110dB - T1208:107dB - T2408:110dB Required AC Mains (@8ohms 1/8 rated power): T604:1A - T1204:1.5A - T1208:1.4A - T2408:2.6A Dimensions (WxHxD): 483x88.9x210 mm - 19x3.5x8.27 inches Weight (Net): T604/T1204: 5.4Kg - 11.8Lbs T1208/T2408: 6.2Kg-13.5Lbs Protections: Soft-start, Turn-on Turn-off muting, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, SSP™ and FCM™
     

    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

    Power Output Level 20Hz - 20kHz 1kHz THD+N=0.2%, 8Ω 80W x 4
    Power Output Level 20Hz - 20kHz 1kHz THD+N=0.2%, 4Ω 115W x 4
    Sensitivity, RL=8. Att.max +4dB
    S/N Ratio, 20Hz-20kHz (DIN AUDIO) 100dB
    Idle Power Consumption 40W
    1/8 Power Consumption (4Ω) 500W
    Power Bandwidth, (Half power THD+N=0.5%) 10Hz – 40kHz
    Intermodulation Distortion, 60Hz: 7kHz, 4:1, half power 0.1%
    Frequency Response, f=20Hz-20kHz -0.5dB, 0dB, 0dB
    Residual Noise, 20Hz-20kHz(DIN AUDIO) -70dB
    Voltage Gain, 8Ω, f=1kHz 100
    Sensitivity, ATT. max 26dB
    Maximum Input Voltage 22dB
    Input Impedance 30kΩ (balance) 15kΩ (unbalance)
    Controls, Front panel POWER switch (push on/push off), attenuator (31position) x 4
    Controls, Rear panel MODE switch (STEREO/BRIDGE/PARALLEL) x 2 HPF switch (OFF/20Hz/55Hz 12dB/oct) x 2
    Connectors, Output 5–way binding post/ch
    Connectors, DATA PORT D-sub15P, Monitor:Output Level/ch,Active/ch, Model Detect Control:Mute/ch
    Connectors, Power AC inlet x 1
    Indicators, POWER x 1 (Green)
    Indicators, SIGNAL x 4(Green)
    Indicators, CLIP/LIMIT x 4 (Red)
    Indicators, PROTECT/MUTE x 4 (Red)
    Load Protection POWER switch on/off mute, DC-fault output relay off
    Power Requirements UC: 120V / 60Hz,
    Weight 10kg (22 lbs.)
    Dimensions (W x H x D) 480 x 88 x 412.2 mm (18-7/8" x 3-7/16" x 16-1/4“) 

    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)


    Weight8.60 kg6.20 kg5.40 kg6.80 kg10.00 kg4.50 kg
    DimensionsN/AN/AN/AN/AN/AN/A
    Additional information
    Weight 8.60 kg
    Weight 6.20 kg
    Weight 5.40 kg
    Weight 6.80 kg
    Weight 10.00 kg
    Weight 4.50 kg