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.
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General Specifications
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PLD4.2 |
PLD4.3 |
PLD4.5 |
Typical Distortion |
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0.01–0.06% |
Maximum Distortion |
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1.0% |
Frequency response |
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20 Hz–15 kHz ±0.2 dB
20 Hz–20 kHz +0.2/-0.7 dB |
Noise:
Unweighted Output Unmuted |
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-101 dB
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Noise:
Weighted Output Muted |
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-109 dB |
Gain |
1.2V |
34.0 dB |
38.4 dB |
38.4 dB |
Damping factor |
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>150 |
Input impedance |
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>10 k?, balanced or unbalanced |
Maximum rms input level |
3.9V |
12.28 V (+24 dBu)
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1.2V |
3.88 V (+14 dBu) |
Amplifier and load protection |
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Short circuit, open circuit, thermal, RF protection. on/off muting, DC fault shutdown, active inrush limiting, input current limiting |
AC Power Input |
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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 |
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