QSC PLD4.2 Processing Amplifier

Description

With four flexible channels of up to 700 watts each, lightweight PowerLight universal power supply, DSP on-board for each channel, and all the right connectors, the QSC PLD4.2 Processing Amplifier is ideal for production and live sound applications.

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:

– Visit the Amplifier Navigator Software to download and update

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.

General Specifications

		PLD4.2	PLD4.3	PLD4.5
Typical Distortion		0.01–0.06%
Maximum Distortion		1.0%
Frequency response		20 Hz–15 kHz ±0.2 dB 20 Hz–20 kHz +0.2/-0.7 dB
Noise: Unweighted Output Unmuted		-101 dB
Noise: Weighted Output Muted		-109 dB
Gain	1.2V	34.0 dB	38.4 dB	38.4 dB
Damping factor		>150
Input impedance		>10 kΩ, balanced or unbalanced
Maximum rms input level	3.9V	12.28 V (+24 dBu)
Maximum rms input level	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

		PLD4.2		PLD4.3		PLD4.5
		Peak	Continuous	Peak	Continuous	Peak	Continuous
4 Independent Channels A, B, C, D	8Ω	500 W	400 W	900 W	625 W	1200 W	1150 W
	4Ω	700 W	400 W	1400 W	625 W	2000 W	1250 W
	2Ω	625 W	325 W	1200 W	625 W	1600 W	625 W
2 Channel BTL Bridged A+B or C+D Doubles Voltage	8Ω	1200 W	800 W	2400 W	1250 W	4000 W	2250 W
	4Ω	1500 W	600 W	NR*	NR*	NR*	NR*
	2Ω	NR*	NR*	NR*	NR*	NR*	NR*
2 Channel Parallel AB or CD Doubles Current	8Ω	500 W	400 W	1300 W	1150 W	1250 W	1150 W
	4Ω	950 W	800 W	2000 W	1250 W	2400 W	2250 W
	2Ω	1200 W	800 W	2500 W	1250 W	4000 W	2100 W
1 Channel 3CH Parallel ABC Triples Current	8Ω	500 W	400 W	1400 W	1150 W	1400 W	1150 W
	4Ω	950 W	800 W	2400 W	2000 W	2500 W	2400 W
	2Ω	1800 W	1200 W	3500 W	2500 W	4500 W	4100 W
1 Channel Bridged/Parallel AB+CD Doubles Current and Voltage	8Ω	1600 W	1500 W	3500 W	2500 W	4500 W	4200 W
	4Ω	2500 W	1600 W	5000 W	2500 W	7500 W	4200 W
	2Ω	NR*	NR*	NR*	NR*	NR*	NR*
1 Channel 4CH Parallel ABCD Quadruples Current	8Ω	500 W	400 W	1400 W	1150 W	1600 W	1150 W
	4Ω	1000 W	800 W	3000 W	2500 W	3000 W	2300 W
	2Ω	1700 W	1600 W	5000 W	2500 W	5300 W	4200 W

For complete specifications of power output distribution (single, bridged, parallel channels and all combinations), please refer to the product’s User Manual.
NR* = Not Recommended due to excessive current draw
BOLD = Optimal configuration for the load and channel count

Controls, Indicators and Connections

	PLD4.2	PLD4.3	PLD4.5
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

	PLD4.2	PLD4.3	PLD4.5
Product Dimensions (H×W×D)	89 × 482 × 305 mm 3.5 × 19 × 12 in	89 × 482 × 406 mm 3.5 × 19 × 16 in	89 × 482 × 406 mm 3.5 × 19 × 16 in
Carton Dimensions (H×W×D)	610 × 460 × 178 mm 24 × 18 × 7 in	610 × 530 × 178 mm 4 × 20.9 × 7 in	610 × 530 × 178 mm 24 × 20.9 × 7 in
Net Weight	8.4 kg / 18.5 lb	9.5 kg / 21 lb	10 kg / 22 lb
Shipping Weight	10 kg / 22 lb	11.4 kg / 25 lb	11.8 kg / 26 lb
Agency approvals	UL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
Carton contents	Locking IEC cable, Quick Start Guide, USB cable