QSC PLD4.2 Processing Amplifier (PLD4.2) with FAST™ Technology

Multi-channel system, Powerful Intrinsic Correction™, DSP

5.0 out of 5 stars

What's in the box:

  • QSC PLD4.2 Processing Amplifier
  • Locking IEC Cable
  • USB Cable
  • Limited Three-Year Warranty


Get More Value with CCI Solutions

UPS logo   Free UPS Shipping
Worry-Free Guarantee
FREE Certified Tech Support
Best Available Price
Retail Price
Save 19%
CCI Price
Usually Ships
1 to 2 Days
Item Number 
Vendor Part

The QSC PLD4.2, part of the PLD Series, represents a revolutionary advancement in audio 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 audio 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.


  • 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
  • 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 x 240 LCD, intuitive navigation buttons, LED power button and indicator, and cast aluminum handles
  • Preset Wizard for audio & sound equipment simplifies amplifier configuration, providing selection from a list of the top selling passive loudspeakers.

Be sure to check out the brochure and video for more information!

Specifications for the QSC PLD4.2 Processing Amplifier

{ "Number of Channels" : "4", "Power Class" : "Class-D", "Watts/Side @ 8 ohms" : "500W Peak, 400W Continuous", "Watts/Side @ 4 ohms" : "700W Peak, 400W Continuous", "Watts/Side @ 2 ohms" : "625W Peak, 350W Continous", "Inputs" : "4 x XLR", "Outputs" : "6 x NL-4", "Rack Spaces" : "2U", "Height" : "3.5"", "Depth" : "12"", "Width" : "19"", "Weight" : "18.5 lbs.", "Manufacturer Part Number" : "PLD4.2-NA" }

Advanced Amplifier Technologies Seminar - PLD/CXD/CXD-Q

QSC: PLD/CXD Product Pillars

PLD/CXD: Product Introduction (English)

PLD/CXD: Preset Wizard, Speaker Wizard & Utility (User Interface Training)

PLD/CXD Amplifier Navigator Software

PLD/CXD: Inputs/Outputs & EQ Processing (User Interface Training)

QSC: PLD/CXD: "An Inside Look"

Understanding Sound Reinforcement - Power Amplifiers (Part 2)

Understanding Sound Reinforcement - Power Amplifiers (Part 1)

Read 1 review for the PLD4.2 Processing Amplifier with FAST™ Technology

Overall Rating:
Leave a review

Isaac Manuel - Terrace Lake Church
I was a bit skeptical with this amp at first, but IT HAS DELIVERED.