Used QSC PLD4.5
Used QSC PLD4.5 units are 4-channel digital power amplifiers with DSP, suited to professional applications including concert touring, live events, musical theatre, and studio environments. The PLD4.5 supports rack mounting and offers flexible output summing for varied power configurations. Browse the second-hand QSC PLD4.5 listings currently available and scroll down to find the right unit for your setup.
Used – Used 4 - Good Dealer
Used – Used 5 - Great Dealer
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QSC PLD4.5 specifications
| Brand | QSC |
| Segment | Audio |
| Analogue or Digital | Digital |
| Rackmounted or Freestanding | Rackmounted |
| IP Rating | Non IP Rated |
| Typical used price | $2,952 (range $2,632–$3,272) |
About the QSC PLD4.5
The QSC PLD4.5 is a 4-channel digital power amplifier with integrated DSP, designed for professional audio use across concert touring, hospitality, cruise, festival, and studio environments. The unit is rack-mountable, making it straightforward to integrate into existing installations or touring rigs. Outputs can be summed to provide various output power options, giving sound professionals flexibility to meet the demands of different venues and performance formats. Its compact form and versatile input options make the QSC PLD4.5 a practical choice for both fixed installations and live production.
QSC PLD4.5 — buyer FAQs
What is the QSC PLD4.5 and what professional environments is it designed for?
The QSC PLD4.5 is a 4-channel digital power amplifier with integrated DSP, built for professional audio use. It is suited to concert touring, live events, festivals, musical theatre, hospitality, cruise, and studio applications. Its rack-mountable form factor makes it straightforward to fit into both permanent installations and touring rigs, while the ability to sum outputs gives sound professionals flexible power configuration options.
Who makes the PLD4.5 and where does it sit in the QSC range?
QSC is an American audio, video and control manufacturer founded in 1968 and headquartered in Costa Mesa, California, known in professional audio for power amplifiers, loudspeakers, and the Q-SYS platform. The PLD4.5 sits within QSC's professional amplifier line, targeting touring and installation users who need a compact, multi-channel digital amp with onboard DSP rather than a separate processing unit.
Can the QSC PLD4.5 be used to drive different speaker configurations?
Yes. The PLD4.5 allows its four outputs to be summed, which provides various output power options beyond a straightforward four-channel configuration. This makes it practical for musical theatre, live performances, and other settings where different loudspeaker arrangements or power demands need to be met from a single unit without adding external summing hardware.
What should I check when buying a used QSC PLD4.5?
Confirm the number of channels operating correctly and verify that the DSP functions as expected. Check whether a power cable is included, as some used units ship with one and others do not, and note that European setups may require a Schuko cable specifically. Flight case availability varies across listings. Every listing on 10K Used carries a 21-day warranty covering major functional faults; full details are in the buying guide at https://www.10kused.com/used-av-equipment-guide/.
What affects the price of a second-hand QSC PLD4.5?
Used PLD4.5 pricing varies with overall condition, age, and what is included in the package. Units sold as a pair typically carry a different price point than single units. Whether accessories such as a flight case or power cable are included also influences value. For current asking prices, check the live listings on this page, where a Make an Offer option may be available on some units.
