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.
Retail: $2,967.00
Price: $2,472.00
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    Item #: PLD4.5

    Description

    8000W Amplifier using FAST channel combining technology. 4 channels, 1200 watts/ch at 8Ω, 2000 watts/ch at 4Ω, 1600 watts/ch at 2Ω, with XLR and NL4 connectors

    Specifications

    Multi-Channel System

    Processing Amplifiers

    PLD Series

    PLD4.2 | PLD4.3 | PLD4.5

    PLD4.2 | PLD4.3 | PLD4.5

    Features

    • Total power up to 8,000 watts.

    • 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.

    • 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 switchmode

    power supply with PFC for highest

    effiency, improved audio performance,

    and low weight.

    • Four Input XLR connectors, and six

    NL-4 Output connectors.

    • Integrated front panel with channel

    Select and Mute buttons, Input and

    Output LED Metering, 400x240 LCD,

    intuitive navigation buttons, LED power

    button and indicator, and cast aluminum

    handles.

    • Preset Wizard simplifies amplifier

    configuration providing loudspeaker

    selection from a list of the top selling

    passive speakers.

    The QSC PLD Series represents a revolutionary

    advancement in 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, fourchannel 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. These

    amplifiers not only make your system perform

    better today, but also provide a wide and

    flexible range of options for future system

    growth.

    Flexible Amplifier Summing Technology™

    (FAST)

    PLD amplifiers feature Flexible Amplifier

    Summing Technology™ (FAST) that actively

    distributes the total amplifier power in various

    combinations across one, two, three, or all four

    outputs. This flexibility allows PLD Series

    amplifiers to drive (for example) four full-range

    loudspeakers or subwoofers; a high-power

    subwoofer and a bi-amplified speaker; a single

    high-power full-range loudspeaker and

    subwoofer combo; or multiple power-hungry

    subwoofers from a single, very high output

    mono-block.

    Advanced Amplifier Technology

    The PLD Series amplifiers use QSC fourth

    generation class-D power amp design in

    combination with a custom power stage

    utilizing a new, purpose-built output device.

    These innovative MOSFET devices provide high

    voltage operation without needing a full bridge

    output and offer superior audio quality due to

    co-location of the semiconductors. Additionally

    PLD amps benefit from the famed and roadproven PowerLight power supply, further

    enhanced with Power Factor Correction (PFC)

    that aligns the current waveform with the AC

    mains voltage waveform. PFC enables PLD

    Series amps to draw current from the wall in a

    more efficient and controlled manner resulting in

    incredible power from a single standard AC

    breaker. Additionally, the PLD Series amps

    offer multi-stage sleep modes, saving energy

    when possible without ever sacrificing

    performance. The result is an exceptionally

    powerful and flexible platform that offers low

    weight and outstanding efficiency.

    System Processing

    PLD Series is more than just an amplifier; it is

    also a capable and sophisticated loudspeaker

    processor. The close integration of processing

    and amplification allows the DSP to monitor

    and better respond to amplifier behavior,

    making dynamics processing far more accurate

    and effective than that typically achieved with

    separate components. This synergistic

    approach employs both RMS and Peak Limiters

    that allow the combination of amplifier and

    loudspeaker to produce more output without

    being pushed to distortion or destruction.

    In addition to the dynamics processing, the

    onboard DSP offers four channels of crossover

    filters, parametric EQ, and alignment delay -

    everything needed to optimize a loudspeaker

    system. PLD amplifiers also offer Intrinsic

    Correction™, a combination of IIR and FIR

    Filtering and loudspeaker processing

    methodology first developed for our WideLine

    line array loudspeakers. Intrinsic Correction

    compensates for the non-linearities in

    loudspeaker array and horn design and results

    in notably superior performance from your QSC

    loudspeakers.

    Preset Wizardry

    The on-board processing is managed and

    stored as presets, with 20 factory presets for

    the most common loudspeaker applications.

    For greater customization, the built-in Preset

    Wizard streamlines amplifier setup and provides

    loudspeaker selection from a list

    of top selling passive loudspeakers.

    Space Efficient

    With four channels of amplification plus drive

    rack signal processing in just 2RU, the PLD

    Series replaces equipment taking up as much

    as three times the rack-space.

    Simple to Use

    With a dedicated front panel UI complete with

    LED meters and indicators, a 400x240 TFT

    color display, a rotary encoder and ergonomic

    navigation buttons, PLD amplifiers provide an

    intuitive interface for the user to control the

    system. The simplicity of the PLD amps is

    further illustrated by the fact that a complete

    system can be set up in mere minutes.

    PLD Details

    4 Independent Channels

    A, B, C, D

    2 Channels BTL Bridged

    A+B or C+D

    Doubles Voltage

    2 Channels Parallel

    AB or CD

    Doubles Current

    1 Channel 3CH Parallel

    ABC

    Triples Current

    1 Channel Bridged/Parallel

    AB+CD

    Doubles Current and Voltage

    1 Channel 4CH Parallel

    ABCD

    Quadruples Current

    PLD4.2 PLD4.3 PLD4.5

    Peak Peak Peak

    8Ω 500 W 900 W 1200 W

    4Ω 700 W 1400 W 2000 W

    2Ω 625 W 1200 W 1600 W

    8Ω 1200 W 2400 W 4000 W

    4Ω 1500 W NR* NR*

    2Ω NR* NR* NR*

    8Ω 500 W 1300 W 1250 W

    4Ω 950 W 2000 W 2400 W

    2Ω 1200 W 2500 W 4000 W

    8Ω 500 W 1400 W 1400 W

    4Ω 950 W 2400 W 2500 W

    2Ω 1800 W 3500 W 4500 W

    8Ω 1600 W 3500 W 4500 W

    4Ω 2500 W 5000 W 7500 W

    2Ω NR* NR* NR*

    8Ω 500 W 1400 W 1600 W

    4Ω 1000 W 3000 W 3000 W

    2Ω 1700 W 5000 W 5300 W

    NR* = Not Recommended due to excessive current draw

    BOLD = Optimal configuration for the load and channel count

    PLD Details

    PLD Spec Sheet 09/19/16

    please recycle

    Specifications subject to change without notice.

    PLD4.2 PLD4.3 PLD4.5

    Typical Distortion

    8Ω

    4Ω

    0.01 - 0.03%

    0.03 - 0.06%

    0.01 - 0.03%

    0.03 - 0.06%

    0.01 - 0.03%

    0.03 - 0.06%

    Maximum Distortion

    4Ω - 8Ω 1.0% 1.0% 1.0%

    Frequency response (8Ω)

    20 Hz - 15 kHz +/- 0.2 dB

    20 Hz - 20 kHz +0.2 dB / -0.7 dB

    20 Hz - 15 kHz +/- 0.2 dB

    20 Hz - 20 kHz +0.2 dB / -0.7 dB

    20 Hz - 15 kHz +/- 0.2 dB

    20 Hz - 20 kHz +0.2 dB / -0.7 dB

    Noise

    Unweighted Output Unmuted

    Weighted Output Muted

    -101 dB

    -109 dB

    -101 dB

    -109 dB

    -101 dB

    -109 dB

    Gain (1.2V setting) 34.0 dB 38.4 dB 38.4 dB

    Damping factor >150 >150 >150

    Input impedance >10k, balanced or unbalanced >10k, balanced or unbalanced >10k, balanced or unbalanced

    Maximum input level

    (3.9V setting)

    (1.2V setting)

    12.28V (+24 dBu)

    3.88V (+14 dBu)

    12.28V (+24 dBu)

    3.88V (+14 dBu)

    12.28V (+24 dBu)

    3.88V (+14 dBu)

    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 AC Power Disconnect AC Power Disconnect

    Input connectors Female XLR Female XLR Female XLR

    Output connectors NL4 NL4 NL4

    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 Universal Power Supply 100 - 240 VAC, 50 - 60 Hz

    Dimensions (HWD) 3.5” x 19” x 12”

    (89mm x 482mm x 305mm)

    3.5” x 19” x 16”

    (89mm x 482mm x 406mm)

    3.5” x 19” x 16”

    (89mm x 482mm x 406mm)

    Weight, Net / Shipping 18.5 lb (8.4 kg) / 22 lb (10.0 kg) 21.0 lb (9.5 kg) / 25 lb (11.3 kg) 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

    Burst Power - 20 ms 1 kHz sine burst, all channels driven

    Continuous Power - EIA 1 kHz 1% THD, all channels driven

    PLD4.2 PLD4.3 PLD4.5

    Peak Peak Peak

    8Ω 500 W 900 W 1000W

    4Ω 700 W 1400 W 2000 W

    2Ω 625 W 1200 W 1600 W

    8Ω 1200 W 2400 W 4000 W

    4Ω 1500 W NR* NR*

    82Ω NR* NR* NR*

    4Ω 500 W 1300 W 1250 W

    2Ω 950 W 2000 W 2400 W

    8Ω 1200 W 2500 W 4000 W

    4Ω 950 W 2000 W 2400 W

    2Ω 1200 W 2500 W 4000 W

    8Ω 500 W 1400 W 1400 W

    4Ω 950 W 2400 W 2500 W

    2Ω 1800 W 3500 W 4500 W

    8Ω 1600 W 3500 W 4500 W

    4Ω 2500 W 5000 W 7500 W

    2Ω NR* NR* NR*

    8Ω 500 W 1400 W 1600 W

    4Ω 1000 W 3000 W 3000 W

    2Ω 1700 W 5000 W 5300 W

    1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174

    © 2016 QSC, LLC all rights reserved. QSC, Q-SYS and the QSC logo are registered trademarks of QSC, LLC in the U.S. Patent and Trademark office and other

    countries. All other trademarks are the property of their respective owners. Patents may apply or be pending.