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QSC PLD4.5 8000W Multi-channel Processing Power Amplifier with DSP

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Item#: PLD45-NA
UPC: 684284060570
Ships in 1-3 days
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About This Product

QSC PLD4.5 8000W Multi-channel Processing Power Amplifier with DSP

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.

PLD4.5 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.
  • 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.
QSC PLD4.5 Specifications

General Specifications

Typical Distortion  
Maximum Distortion   1.0%
Frequency response   20 Hz–15 kHz ±0.2 dB
20 Hz–20 kHz +0.2/-0.7 dB
Unweighted Output Unmuted  
-101 dB

Weighted Output Muted
  -109 dB
Gain 1.2V   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

  Peak Continuous
4 Independent Channels
A, B, C, D

8Ω   1200 W   1150 W
2000 W 1250 W
1600 W 625 W
2 Channel BTL Bridged
A+B or C+D
Doubles Voltage

4000 W 2250 W
2 Channel Parallel
AB or CD
Doubles Current

1250 W 1150 W
2400 W 2250 W
4000 W 2100 W
1 Channel 3CH Parallel
Triples Current

1400 W 1150 W
2500 W 2400 W
4500 W 4100 W
1 Channel Bridged/Parallel
Doubles Current and Voltage  

4500 W 4200 W
7500 W 4200 W
1 Channel 4CH Parallel
Quadruples Current

1600 W 1150 W
3000 W 2300 W
5300 W 4200 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

Dimensions (HWD) inches   3.5 x 19 x 16
Dimensions (HWD) mm 89 × 482 × 406
Weight, Net / Shipping 22.0 lb (10.0 kg) / 26 lb (11.8 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
The PLD4.5 Box Includes:

(1) Quick‑Start Guide TD-000351-00
(1) Warning Information Sheet TD-000420-00
(1) PLD Amplifier
(1) IEC AC Power Cord
(1) USB Cable

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