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PLD Series Power Amplifier Application Guidefor Portable PAwww.qsc.com

10 QSC Audio Products LLC Application Engineering TeamBecause the current needs of the device are compressed into a very narrow conduction angle, t

PLD Series Amplifiers 11 Application Guide—Portable PA Rev. C Feb. 2015When the current waveform is a sine that coincides exact-ly with the voltage wa

12 QSC Audio Products LLC Application Engineering TeamFAST (Flexible Amplifier Summing Technology™)Four, three, two, or one channelThe four channels

PLD Series Amplifiers 13 Application Guide—Portable PA Rev. C Feb. 2015Connecting additional parallel identical batteries or amp channels increases th

14 QSC Audio Products LLC Application Engineering TeamSeries-parallelFour batteries—or four PLD amp channels—can be arranged in a combination of bo

PLD Series Amplifiers 15 Application Guide—Portable PA Rev. C Feb. 2015Amplifier Navigator™QSC’s exclusive Amplifier Navigator™ software is a versatile

16 QSC Audio Products LLC Application Engineering TeamPresetsTwenty factory presets pre-installed in the amp offer all the different combinations o

PLD Series Amplifiers 17 Application Guide—Portable PA Rev. C Feb. 2015Factory Preset Display DescriptionF7Channels A, B, and C parallel; D separateSu

18 QSC Audio Products LLC Application Engineering TeamFactory Preset Display DescriptionF13Channels A and B parallel for 4Ω sub-woofer; channels C

PLD Series Amplifiers 19 Application Guide—Portable PA Rev. C Feb. 2015Factory Preset Display DescriptionF17Channels A and B bridged for 8Ω subwoofer;

2 QSC Audio Products LLC Application Engineering TeamAddressQSC Audio Products., LLC. 1675 MacArthur Boulevard Costa Mesa, CA 92626-1468 USAMain Sw

20 QSC Audio Products LLC Application Engineering Team2. Real-World Applications with PLDLoudspeaker power capacitiesLoudspeaker manufacturers pub

PLD Series Amplifiers 21 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo passive tops and subs• Two 8Ω medium-power single-woofer p

22 QSC Audio Products LLC Application Engineering TeamApplication: Stereo passive mains with two monitor mixes• Two 8Ω medium-power single-woofer

PLD Series Amplifiers 23 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo passive tops and subs with two monitor mixes• Two 8Ω mediu

24 QSC Audio Products LLC Application Engineering TeamApplication: Mono passive tops and subs with two monitors on one mix• Two 8Ω medium-power si

PLD Series Amplifiers 25 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo full-range mains with four monitor mixes• Two 4Ω medium-po

26 QSC Audio Products LLC Application Engineering TeamApplication: Stereo passive tops and subs with two monitor mixes• Two 4Ω medium-power double

PLD Series Amplifiers 27 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo passive tops and mono sub• Two 8Ω medium-power single-woof

28 QSC Audio Products LLC Application Engineering TeamApplication: Stereo passive tops and two mono subs• Two 4Ω medium-power double-woofer passiv

PLD Series Amplifiers 29 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo bi-amp mains• Two 4Ω + 8Ω high-power double-woofer bi-amp

PLD Series Amplifiers 3 Application Guide—Portable PA Rev. C Feb. 2015Table of Contents1. Introduction ...

30 QSC Audio Products LLC Application Engineering TeamApplication: Stereo bi-amp mains with two monitor mixes• Two 8Ω high-power single-woofer bi-

PLD Series Amplifiers 31 Application Guide—Portable PA Rev. C Feb. 2015Application: Mono bi-amp tops and sub• Two 8Ω high-power single-woofer bi-amp

32 QSC Audio Products LLC Application Engineering TeamApplication: Stereo full-range mains• Two 4Ω medium-power double-woofer passive main loudspe

PLD Series Amplifiers 33 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo passive tops and subs• Two 8Ω high-power single-woofer pas

34 QSC Audio Products LLC Application Engineering TeamApplication: Stereo passive tops and subs• Two 4Ω high-power double-woofer passive tops, ste

PLD Series Amplifiers 35 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo bi-amp mains• Two 8Ω high-power single-woofer bi-amp louds

36 QSC Audio Products LLC Application Engineering TeamApplication: Stereo bi-amp mains• Two 4Ω high-power double-woofer bi-amp loudspeakers, stere

PLD Series Amplifiers 37 Application Guide—Portable PA Rev. C Feb. 2015Application: Stereo bi-amp tops and mono subs, with two monitors on one mix• T

38 QSC Audio Products LLC Application Engineering TeamApplication: Stereo bi-amp tops and subs• Two 4Ω high-power double-woofer bi-amp loudspeaker

PLD Series Amplifiers 39 Application Guide—Portable PA Rev. C Feb. 20153. PLD Series SpecificationsPLD4.2 PLD4.3 PLD4.5Burst Continuous Burst Continuo

4 QSC Audio Products LLC Application Engineering TeamCopyright © 2015 by QSC Audio Products, LLC. Allrights reserved.QSC is a trademark of QSC Audi

QSC Audio Products, LLCApplication Engineering Teamqsc.com

PLD Series Amplifiers 5 Application Guide—Portable PA Rev. C Feb. 20151. IntroductionWhy PLD?The role of a power amp is simple: the proverbial functi

6 QSC Audio Products LLC Application Engineering TeamPLD: A new paradigmThe innovative technology built into the PLD amplifiers represents a very ne

PLD Series Amplifiers 7 Application Guide—Portable PA Rev. C Feb. 2015User interfaceThe front panel of a PLD amp features a 400 × 240 pixel color scre

8 QSC Audio Products LLC Application Engineering TeamPhysical layoutThe PLD Series feature a neat, organized layout of the rear panel connectors an

PLD Series Amplifiers 9 Application Guide—Portable PA Rev. C Feb. 2015Electrical powerElectrical power has always been a potential constraint on porta