เครื่องขยายเสียง 4 ชาเเนล 4×2000 วัตต์ ที่ 4 โอมห์

แบรนด์ : QSC


QSC PLD4.5  Processing Amplifier

With four flexible channels of up to 2000 watts each, lightweight PowerLight universal power supply, DSP on-board for each channel, and all the right connectors, the PLD4.5 is ideal for production and live sound applications.





  • 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.






Typical Distortion 0.010.06%
Maximum Distortion 1.0%
Frequency response 20 Hz15 kHz ±0.2 dB
20 Hz20 kHz +0.2/-0.7 dB
Unweighted Output Unmuted
 -101 dB
Weighted Output Muted
 -109 dB
Gain1.2V34.0 dB38.4 dB38.4 dB
Damping factor >150
Input impedance >10 kΩ, balanced or unbalanced
Maximum rms input level3.9V12.28 V (+24 dBu)
1.2V3.88 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 100-132/200240 VAC, 5060 Hz
4.3/4.5: Universal Power Supply 100240 VAC, 5060 Hz

Power Specifications





 Peak ContinuousPeakContinuousPeakContinuous
4 Independent Channels
A, B, C, D
500 W400 W900 W625 W1200 W1150 W
 4Ω700 W400 W1400 W625 W2000 W1250 W
 2Ω625 W 325 W1200 W625 W1600 W625 W
2 Channel BTL Bridged
A+B or C+D
Doubles Voltage
1200 W800 W2400 W1250 W4000 W2250 W
1500 W600 WNR*NR*NR*NR*
2 Channel Parallel
AB or CD
Doubles Current
500 W400 W1300 W1150 W1250 W1150 W
950 W800 W2000 W1250 W2400 W2250 W
1200 W800 W2500 W1250 W4000 W2100 W
1 Channel 3CH Parallel
Triples Current
500 W400 W1400 W1150 W1400 W1150 W
950 W800 W2400 W2000 W2500 W2400 W
1800 W1200 W3500 W2500 W4500 W4100 W
1 Channel Bridged/Parallel
Doubles Current and Voltage
1600 W1500 W3500 W2500 W4500 W4200 W
2500 W1600 W5000 W2500 W7500 W4200 W
1 Channel 4CH Parallel
Quadruples Current
500 W400 W1400 W1150 W1600 W1150 W
1000 W800 W3000 W2500 W3000 W2300 W
1700 W1600 W5000 W2500 W5300 W4200 W

NR* = Not Recommended due to excessive current draw
BOLD = Optimal configuration fo rthe load and channel count

Controls, Indicators and Connections





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 connectorsFemale XLR
Output connectors  NL4

Weights and Dimensions





Dimensions (HWD) inches3.5 x 19 x 123.5 x 19 x 163.5 x 19 x 16
Dimensions (HWD) mm89 × 482 × 30589 × 482 × 40689 × 482 × 406
Weight, Net / Shipping18.5 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 approvalsUL, CE, RoHS/WEEE compliant, FCC Class A (conducted and radiated emissions)
Carton contentsLocking IEC cable, Quick Start Guide, USB cable
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