• Flexible Amplifier Summing Technology¢â (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¢â 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. PLD4.2 PLD4.3 PLD4.5 4 Ch. Continuous1 8¥Ø 4¥Ø 2¥Ø 400 Watts 400 Watts 325 Watts 625 Watts 625 Watts 625 Watts 1150 Watts 1250 Watts 625 Watts 2 Ch. Continuous1 8¥Ø 4¥Ø 2¥Ø 800 Watts 800 Watts 650 Watts 1250 Watts 1200 Watts 1200 Watts 2250 Watts 2250 Watts 2100 Watts 1 Ch. Continuous1 8¥Ø 4¥Ø 2¥Ø 1¥Ø 1600 Watts 1600 Watts 1600 Watts 1600 Watts 2500 Watts 2500 Watts 2500 Watts 2500 Watts 4200 Watts 4200 Watts 4250 Watts 3700 Watts Typical Distortion 8¥Ø 4¥Ø 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 4¥Ø - 8¥Ø 1.0% 1.0% 1.0% Frequency response (8¥Ø) 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 1 - 1.0 kHz sine wave, 1% THD, 1 channel driven
PLD4.2
PLD4.3
PLD4.5
4 Ch. Continuous1
8¥Ø
4¥Ø
2¥Ø
400 Watts
325 Watts
625 Watts
1150 Watts
1250 Watts
2 Ch. Continuous1
800 Watts
650 Watts
1200 Watts
2250 Watts
2100 Watts
1 Ch. Continuous1
1¥Ø
1600 Watts
2500 Watts
4200 Watts
4250 Watts
3700 Watts
Typical Distortion
0.01 - 0.03%
0.03 - 0.06%
Maximum Distortion
4¥Ø - 8¥Ø
1.0%
Frequency response (8¥Ø)
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
Gain (1.2V setting)
34.0 dB
38.4 dB
Damping factor
>150
Input impedance
>10k, balanced or unbalanced
Maximum input level
(3.9V setting)
(1.2V setting)
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
Input connectors
Female XLR
Output connectors
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)
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
1 - 1.0 kHz sine wave, 1% THD, 1 channel driven