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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.

Features

  • 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.

General Specifications

    PLD4.2 PLD4.3 PLD4.5
Typical Distortion  
0.01–0.06%
Maximum Distortion   1.0%
Frequency response   20 Hz–15 kHz ±0.2 dB
20 Hz–20 kHz +0.2/-0.7 dB
Noise:
Unweighted Output Unmuted
 
-101 dB

Noise:
Weighted Output Muted
  -109 dB
Gain 1.2V 34.0 dB 38.4 dB 38.4 dB
Damping factor   >150
Input impedance   >10 kΩ, balanced or unbalanced 
Maximum rms input level 3.9V
12.28 V (+24 dBu)

1.2V 3.88 V (+14 dBu)
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   4.2: Universal Power Supply 100-132/200–240 VAC, 50–60 Hz
4.3/4.5: Universal Power Supply 100–240 VAC, 50–60 Hz

Power Specifications

  PLD4.2 PLD4.3 PLD4.5
  Peak  Continuous Peak Continuous Peak Continuous
4 Independent Channels
A, B, C, D
 
500 W 400 W 900 W 625 W 1200 W 1150 W
700 W 400 W 1400 W 625 W 2000 W 1250 W
625 W  325 W 1200 W 625 W 1600 W 625 W
2 Channel BTL Bridged
A+B or C+D
Doubles Voltage
 
1200 W 800 W 2400 W 1250 W 4000 W 2250 W
1500 W 600 W NR* NR* NR* NR*
NR* NR* NR* NR* NR* NR*
2 Channel Parallel
AB or CD
Doubles Current
 
500 W 400 W 1300 W 1150 W 1250 W 1150 W
950 W 800 W 2000 W 1250 W 2400 W 2250 W
1200 W 800 W 2500 W 1250 W 4000 W 2100 W
1 Channel 3CH Parallel
ABC
Triples Current
 
500 W 400 W 1400 W 1150 W 1400 W 1150 W
950 W 800 W 2400 W 2000 W 2500 W 2400 W
1800 W 1200 W 3500 W 2500 W 4500 W 4100 W
1 Channel Bridged/Parallel
AB+CD
Doubles Current and Voltage
 
1600 W 1500 W 3500 W 2500 W 4500 W 4200 W
2500 W 1600 W 5000 W 2500 W 7500 W 4200 W
NR* NR* NR* NR* NR* NR*
1 Channel 4CH Parallel
ABCD
Quadruples Current
 
500 W 400 W 1400 W 1150 W 1600 W 1150 W
1000 W 800 W 3000 W 2500 W 3000 W 2300 W
1700 W 1600 W 5000 W 2500 W 5300 W 4200 W

NR* = Not Recommended due to excessive current draw
BOLD = Optimal configuration fo rthe load and channel count

Controls, Indicators and Connections

  PLD4.2 PLD4.3 PLD4.5
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

Weights and Dimensions

  PLD4.2 PLD4.3 PLD4.5
Product Dimensions (H×W×D) 89 × 482 × 305 mm
3.5 × 19 × 12 in
89 × 482 × 406 mm
3.5 × 19 × 16 in
89 × 482 × 406 mm
3.5 × 19 × 16 in
Carton Dimensions (H×W×D) 610 × 460 × 178 mm
24 × 18 × 7 in
610 × 530 × 178 mm
4 × 20.9 × 7 in
610 × 530 × 178 mm
24 × 20.9 × 7 in
Net Weight 8.4 kg / 18.5 lb 9.5 kg / 21 lb 10 kg / 22 lb
Shipping Weight 10 kg / 22 lb 11.4 kg / 25 lb 11.8 kg / 26 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

 

All specifications are subject to change without notice.

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