The QSC PLD4.3 Processing Amplifier from PLD Series is designed specifically for the needs of portable and production sound system users. It provides efficient, robust, and high-fidelity power to drive multiple channels and configurations of loudspeakers while simultaneously deploying sophisticated digital processing with minimal operator complexity. This powerful and lightweight 4-channel amplifier with onboard, advanced DSP has the capability to configure and combine channels in various ways to drive a wide range of loudspeaker systems.
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.
20 Hz–15 kHz ±0.2 dB 20 Hz–20 kHz +0.2/-0.7 dB
Noise: Unweighted Output Unmuted
Noise: Weighted Output Muted
>10 kΩ, balanced or unbalanced
Maximum rms input level
12.28 V (+24 dBu)
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