เครื่องขยายเสียง ยี่ห้อ QSC รุ่น PLD4 3
Feature
- 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.
- 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 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, 400×240 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 topselling passive speakers.
Specs
| PLD4.2 | PLD4.3 | PLD4.5 | |
| 4 Ch. Continuous1
8Ω 4Ω 2Ω |
400 Watts 400 Watts 325 Watts |
625 Watts 625 Watts 625 Watts |
1150 Watts 1250 Watts 625 Watts |
| 2 Ch. Continuous1
8Ω 4Ω 2Ω |
800 Watts 800 Watts 650 Watts |
1250 Watts 1200 Watts 1200 Watts |
2250 Watts 2250 Watts 2100 Watts |
| 1 Ch. Continuous1
8Ω 4Ω 2Ω 1Ω |
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
8Ω 4Ω |
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
4Ω – 8Ω |
1.0% |
1.0% |
1.0% |
| Frequency response(8Ω) | 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 | |||
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