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QSC PLD 4.2 Four Channel Power Amplifier

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  • QSC PLD 4.2 Four Channel Power Amplifier
  • QSC PLD 4.2 Four Channel Power Amplifier


4-Channel Power Amplifier with DSP

Brand New

Out of stock


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Product Description for the QSC PLD 4.2

With four flexible channels of up to 700 watts each, lightweight PowerLight universal power supply, DSP on-board for each channel, and all the right connectors, the PLD4.2 is ideal for production and live sound applications.

Offering 1600 watts with flexible distribution of power between up to 4 channels, the QSC PLD 4.2 Four-Channel Power Amplifier and other PLD Series amps are designed specifically for the needs of portable and production sound system users. By providing efficient, robust and extraordinarily high fidelity power, the PLD 4.2 can drive multiple channels and configurations of loudspeakers while simultaneously deploying sophisticated digital processing through an easy, all with minimal operator complexity.

The PLD Series consists of three powerful, lightweight, four-channel amplifiers, each with onboard, advanced DSP and the capability to configure and combine channels in various ways to drive a wide range of loudspeaker systems. These amplifiers not only make your system perform better today, but also provide a wide and flexible range of options for future system growth.


QSC PLD 4.2 Four-Channel Power Amplifier Features

  • Total Wattage 1600 watts flexible between 4 Channels!
  • Flexible Amplifier Summing Technology (FAST) drives most any loudspeaker system or configuration by distributing total amplifier power across one, two, three or all four channels.
  • Four channels of full function onboard loudspeaker DSP with Crossover and Parametric EQ Filters, Limiting and Alignment Delay eliminate the need for outboard loudspeaker processors.
  • Intuitive and simple interface, including optional PC control and monitoring
  • Proprietary and revolutionary MOSFET output device delivers high voltage operation without needing a full bridge output.
  • Powerful Intrinsic Correction processing maximizes the sonic performance of QSC loudspeakers.
  • 20 Factory Preset configurations that can be modified and stored in the 50 User Presets.
  • PowerLight universal switchmode power supply with PFC for highest effiency, improved audio performance, and low weight.
  • Four Input XLR connectors, and six NL-4 Output connectors.
  • Integrated front panel with channel Select and Mute buttons, Input and Output LED Metering, 400x240 LCD, intuitive navigation buttons, LED power button and indicator, and cast aluminum handles.
  • Preset Wizard simplifies amplifier configuration providing loudspeaker selection from a list of the top selling passive speakers.

QSC PLD 4.2 Four-Channel Power Amplifier Specifications

4 Channel:

  • 8Ω: 400 Watts (Continuous); 500 Watts (Burst)
  • 4Ω: 400 Watts (Continuous); 700 Watts (Burst)
  • 2Ω: 325 Watts (Continuous); 600 Watts (Burst)

2 Channel:

  • 8Ω: 800 Watts (Continuous); 1200 Watts (Burst)
  • 4Ω: 800 Watts (Continuous); 1500 Watts (Burst)
  • 2Ω: 650 Watts (Continuous); 1500 Watts (Burst)

1 Channel:

  • 8Ω: 1600 Watts (Continuous); 1600 Watts (Burst)
  • 4Ω: 1600 Watts (Continuous); 2500 Watts (Burst)
  • 2Ω: 1600 Watts (Continuous); 1700 Watts (Burst)
  • 1Ω: 1600 Watts (Continuous); 2500 Watts (Burst)

Typical Distortion:

  • 8Ω: 0.01 - 0.03%
  • 4Ω: 0.03 - 0.06%
  • Maximum Distortion: 4Ω - 8Ω: 1.00%

Frequency Response (8Ω):

  • 20 Hz - 15 kHz +/- 0.2 dB
  • 20 Hz - 20 kHz +0.2 dB / -0.7 dB


  • Unweighted Output Unmuted: -101 dB
  • Weighted Output Muted: -109 dB
  • Gain (1.2V Setting): 34 dB
  • Damping Factor: >150
  • Input Impedance: >10k, balanced or unbalanced

Maximum Input Level:

  • (3.9V Setting): 12.28V (+24 dBu)
  • (1.2V Setting): 3.88V (+14 dBu)

Controls And Indicators (Front):

  • Power
  • Channel MUTE Buttons
  • Channel SELECT Buttons
  • Channel Input Signal and CLIP LED Indicators
  • Channel Output and LIMIT LED Meters
  • HOME, ENTER, EXIT, GAIN Navigation Buttons
  • Control Knob
  • Controls And Indicators (Rear): AC Power Disconnect
  • Input Connectors: Female XLR
  • Output Connectors: NL4

Amplifier And Load Protection:

  • Short circuit, open circuit
  • Thermal
  • RF protection
  • On/Off muting
  • DC fault shutdown
  • Active inrush limiting
  • Input current limiting
  • Ac Power Input: Universal Power Supply 100 - 240 VAC, 50 - 60 Hz
  • Dimensions (HxWxD): 3.5 x 19 x 12 inches (89 x 482 x 305 mm)
  • Agency Approvals: UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
Brand QSC
Weight 16.5000
Dimensions (WxHxD) No


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