NEW QSC PLD4.5 Processing Amplifier – 1150W 8 Ohm


Available on backorder

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PLD4.5 | With four flexible channels of up to 2000 watts each, lightweight PowerLight universal power supply, DSP on-board for each channel, and all the right connectors, the PLD4.5 is ideal for production and live sound applications.

The QSC PLD Series represents a revolutionary advancement in amplifier technology and innovation. Designed specifically for the needs of portable and production sound system users, PLD provides efficient, robust and extraordinarily high fidelity power to drive multiple channels and configurations of loudspeakers while simultaneously deploying sophisticated digital processing – 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.


  • 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.
  • E Series Entertainment System DSP Tunings are now available for PLD processing amplifiers:

– Visit the Amplifier Navigator Software to download and update

  • 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 switch mode power supply with PFC for highest efficiency, improved audio performance, and low weight.
  • Four input XLR connectors and six NL4 output connectors.
  • Integrated front panel with channel Select and Mute buttons, input and output LED metering, 400×240 LCD, intuitive navigation buttons, LED power button and indicator, and cast aluminum handles.
  • Preset Wizard simplifies amplifier configuration, providing selection from a list of the top selling passive loudspeakers.
• Typical Distortion: 0.010.06%
• Maximum Distortion: 1.0%
• Frequency response: 20 Hz – 15 kHz +/- 0.2 dB
20 Hz – 20 kHz +0.2 dB / -0.7 dB
• Noise: Unweighted Output Unmuted, -101 dB
Weighted Output Muted, -109 dB
• Gain (1.2V setting): 38.4 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)
• 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

Additional information

Weight 27 lbs
Dimensions 23 × 22 × 8 in

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