QSC Audio 3 Series manual Ultimate Real-World Headroom, Ultimate System Compatibility

more than doubles the output power and thermal capacity of our previous 2RU designs, but it looks and sounds “linear,” whether on the bench or driving speakers. Rigorous testing and precise alignment of feedback networks produce stable closed- loop response.

The modulator converts analog input sig- nals into varying on-off ratios – the PL380 amplifi er’s responds in under 5 nanosec- onds. A crystal controlled, synchronized power supply and Class D clocks prevent interference between power stages.

Our new Class D switching section uses a single pair of industrial strength devices that easily handle kilowatts of energy without extra complexity. Our painstakingly refi ned PCB design controls high frequency cur- rents to prevent internal interference. A proprietary dynamic current limiter monitors power stress in the output devices, deliver- ing the maximum power possible within safe operating limits.

Output fi ltering is another key to ultimate audio performance. Proprietary winding techniques pack more copper on a smaller coil, for better effi ciency and lower distortion.

Ultimate Real-World Headroom

If you’ve been up on the riser ringing out drum monitors, or out at FOH aligning the subs with the mains, you know that head- room is not measured by instantaneous peak power ratings. It’s the ability of the entire amplifi er, from power supply to output devices, to produce high voltages and cur- rents for extended periods of time. Power- Light 3 Series amplifi ers go head-to-head with products claiming much higher output.

Ultimate System Compatibility

Zero Signal Latency

Of course the PowerLight 3 Series has DSP options. But none of them impose a latency penalty inside the amplifi er. There’s no other way to ensure compatibility with other amplifi ers; no other way to avoid

compromising signal alignment in multi-way sound systems.

Flexible System Architecture Choices: they’re what the PowerLight 3 Series is all about. Upgrade analog racks and monitor them on stage. Go all the way to fully networked digital signal distribution and processing with remote system manage- ment. Combine elements of both approach- es. It’s your decision, as it should be.

Ultimate Ruggedness

The real art of amplifi er design is deliver- ing ultimate power output while protecting the entire system. Like all QSC designs, PowerLight 3 Series amplifi ers had to pass every one of our electrical and mechanical stress tests – so tough, we’ve never found another amplifi er brand that has survived the full test cycle.