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.

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

• 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 
• Damping factor -    >150
• Input impedance -  >10 kO, 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

Peak  Continuous

4 Independent Channels
A, B, C, D:

• 8O 500 W 400 W
• 4O 700 W 400 W
• 2O 625 W  325 W

2 Channel BTL Bridged
A+B or C+D
Doubles Voltage:

•  8O 1200 W 800 W
•  4O 1500 W 600 W
•  2O NR* NR*
  

2 Channel Parallel
AB or CD
Doubles Current:

• 8O 500 W 400 W
• 4O 950 W 800 W
• 2O 1200 W 800 W

1 Channel 3CH Parallel
ABC
Triples Current:

• 8O 500 W 400 W
• 4O 950 W 800 W
• 2O 1800 W 1200 W

1 Channel Bridged/Parallel
AB+CD
Doubles Current and Voltage:

• 8O 1600 W 1500 W
• 4O 2500 W 1600 W
• 2O NR* NR*
  

1 Channel 4CH Parallel
ABCD
Quadruples Current:

• 8O 500 W 400 W
• 4O 1000 W 800 W
• 2O 1700 W 1600 W

Controls, Indicators and Connections

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

• Product Dimensions - (H×W×D) 89 × 482 × 305 mm
  
• Carton Dimensions - (H×W×D) 610 × 460 × 178 mm
  
• Net Weight 8.4 kg
• Shipping Weight 10 kg
• Agency approvals - UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
• Carton contents  - Locking IEC cable, Quick Start Guide, USB cable