QSC PLD4.3-xx 4000W Amplifier using FAST channel combining technology. 4 channels, 900 watts/ch. The QSC PLD Series represents a revolutionary advancement in amplifier technology and innovation. Designed specifically for the needs of portable and production sound system users, PLD provides efficient, robust and extraordinarily high fidelity power to drive multiple channels and configurations of loudspeakers while simultaneously deploying sophisticated digital processing – all with minimal operator complexity. The PLD Series consists of three powerful, lightweight, fourchannel amplifiers, each with onboard, advanced DSP and the capability to configure and combine channels in various ways to drive a wide range of loudspeaker systems. These amplifiers not only make your system perform better today, but also provide a wide and flexible range of options for future system growth.
Features
General Specifications
| PLD4.3 | |
| 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 | 38.4 dB |
| Damping factor | >150 |
| Input impedance | >10 kΩ, balanced or unbalanced |
| Maximum rms input level | 12.28 V (+24 dBu) |
| 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
| PLD4.3 | ||
| Peak | Continuous | |
| 4 Independent Channels A, B, C, D | 900 W | 625 W |
| 1400 W | 625 W | |
| 1200 W | 625 W | |
| 2 Channel BTL Bridged A+B or C+D Doubles Voltage | 2400 W | 1250 W |
| NR* | NR* | |
| NR* | NR* | |
| 2 Channel Parallel AB or CD Doubles Current | 1300 W | 1150 W |
| 2000 W | 1250 W | |
| 2500 W | 1250 W | |
| 1 Channel 3CH Parallel ABC Triples Current | 1400 W | 1150 W |
| 2400 W | 2000 W | |
| 3500 W | 2500 W | |
| 1 Channel Bridged/Parallel AB+CD Doubles Current and Voltage | 3500 W | 2500 W |
| 5000 W | 2500 W | |
| NR* | NR* | |
| 1 Channel 4CH Parallel ABCD Quadruples Current | 1400 W | 1150 W |
| 3000 W | 2500 W | |
| 5000 W | 2500 W | |
NR* = Not Recommended due to excessive current draw
BOLD = Optimal configuration fo rthe load and channel count
Controls, Indicators and Connections
| PLD4.3 | |
| 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
| PLD4.3 | |
| Product Dimensions (H×W×D) | 89 × 482 × 406 mm 3.5 × 19 × 16 in |
| Carton Dimensions (H×W×D) | 610 × 530 × 178 mm 4 × 20.9 × 7 in |
| Net Weight | 9.5 kg / 21 lb |
| Shipping Weight | 11.4 kg / 25 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 |
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:
- 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.
