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Product Description
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.


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, 400×240 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.

4 Independent Channels
A, B, C, D
8Ω 500 W / 400 W Continuous
4Ω 700 W / 400 W Continuous
2Ω 625 W / 325 W Continuous

2 Channel BTL Bridged
A+B or C+D
Doubles Voltage
8Ω 1200 W / 800 W Continuous
4Ω 1500 W / 600 W Continuous

2 Channel Parallel
AB or CD
Doubles Current
8Ω 500 W / 400 W Continuous
4Ω 950 W / 800 W Continuous
2Ω 1200 W / 800 W Continuous

1 Channel 3CH Parallel
Triples Current
8Ω 500 W / 400 W Continuous
4Ω 950 W / 800 W Continuous
2Ω 1800 W / 1200 W Continuous

1 Channel Bridged/Parallel
Doubles Current and Voltage
8Ω 1600 W / 1500 W Continuous
4Ω 2500 W / 1600 W Continuous

1 Channel 4CH Parallel
Quadruples Current
8Ω 500 W / 400 W Continuous
4Ω 1000 W / 800 W Continuous
2Ω 1700 W / 1600 W Continuous

Product Dimensions (H×W×D) 89 × 482 × 305 mm
3.5 × 19 × 12 in

Carton Dimensions (H×W×D) 610 × 460 × 178 mm
24 × 18 × 7 in

Net Weight 8.4 kg / 18.5 lb

Shipping Weight 10 kg / 22 lb

Agency approvals UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)

Carton contents Locking IEC cable, Quick Start Guide, USB cable

QSC PLD4.2   ( QSC PLD-4.2 )

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