PowerLight™ 3 Series 2500 to 8000 watt, lightweight, 2RU amplifiers for use in the most demanding concert and live-sound reinforcement applications. WideLine-8 shown Power, fl exibility, pristine audio quality and legendary QSC reliability — the ultimate concert amplifi ers. Perfect for portable live sound and installed sound applications, including outdoor events, stadiums and arenas, casinos, nightclubs, restaurants, hotels, houses of worship, corporate campuses and convention centers. The concert stage is Concert audio performance has to be impec- Ultimate Audio Performance cable. Reliability, unshakable. Effi ciency, un- the ultimate test of beatable. Factory support, unstoppable. For One world class power supply, decades, QSC has set the standards in every two output technologies. professional audio one of these mission critical dimensions. Over four decades of R&D, we’ve learned technology. to take innovative leaps one at a time. Top grossing concert performers are the Since PowerLight™ remains the world’s most demanding clients in the world. most effi cient supply, we developed new There’s no room for compromise among output stages. the professionals who provide the techni- cal foundation that allows those artists to PL340 & PL325: express their creativity. Time after time, tour Ultimate Class H Technology after tour, show after show, these industry We design for the total show: load-in to leaders stake their reputations — and their load-out and everything in between. That’s businesses — on QSC technology, without why the 2-tier linear PL340 and PL325 not second chances or retakes. Night after only have ruler-fl at response into 8 ohm night, venue upon venue across the globe, loads, but similar transparency and detail QSC professional audio systems do exactly into 2 ohms. what Pat Quilter and his team of engineers designed them to do – deliver. PL380: Ultimate Class D Technology Class D amplifi er design offers ultimate power conversion effi ciency and entails greater complexity than linear topologies. It is also harder to master since it has more signal-conversion stages, each a source of errors that must be corrected. The PL380 more than doubles the output power Output fi ltering is another key to ultimate compromising signal alignment in multi-way and thermal capacity of our previous 2RU audio performance. Proprietary winding sound systems. designs, but it looks and sounds “linear,” techniques pack more copper on a smaller whether on the bench or driving speakers. coil, for better effi ciency and lower distortion. Flexible System Architecture Rigorous testing and precise alignment of Choices: they’re what the PowerLight 3 feedback networks produce stable closed- Ultimate Real-World Headroom Series is all about. Upgrade analog racks and loop response. monitor them on stage. Go all the way to If you’ve been up on the riser ringing out fully networked digital signal distribution and The modulator converts analog input sig- drum monitors, or out at FOH aligning the processing with remote system manage- nals into varying on-off ratios – the PL380 subs with the mains, you know that head- ment. Combine elements of both approach- amplifi er’s responds in under 5 nanosec- room is not measured by instantaneous es. It’s your decision, as it should be. onds. A crystal controlled, synchronized peak power ratings. It’s the ability of the power supply and Class D clocks prevent entire amplifi er, from power supply to output Ultimate Ruggedness interference between power stages. devices, to produce high voltages and cur- rents for extended periods of time. Power- The real art of amplifi er design is deliver- Our new Class D switching section uses a Light 3 Series amplifi ers go head-to-head ing ultimate power output while protecting single pair of industrial strength devices that with products claiming much higher output. the entire system. Like all QSC designs, easily handle kilowatts of energy without PowerLight 3 Series amplifi ers had to pass extra complexity. Our painstakingly refi ned Ultimate System Compatibility every one of our electrical and mechanical PCB design controls high frequency cur- stress tests – so tough, we’ve never found rents to prevent internal interference. A Zero Signal Latency another amplifi er brand that has survived proprietary dynamic current limiter monitors Of course the PowerLight 3 Series has the full test cycle. power stress in the output devices, deliver- DSP options. But none of them impose a ing the maximum power possible within latency penalty inside the amplifi er. There’s safe operating limits. no other way to ensure compatibility with other amplifi ers; no other way to avoid The PowerLight 3 Series includes the Class D PL380 as well as two Class H models. All share a common control, connector and indicator layout for neat and simplified integration into equipment racks. PL380: Ultimate Class D Real World Headroom and other extreme applications. This system Performance and World-Proven Audition the PL380 head-to-head with any is simple and reliable, with far more safety PowerLight Technology high power Class D amplifier on the planet. margin than normal audio devices. We believe the PL380 has the highest overall efficiency, from AC plug to speaker Massive Where It Counts Whatever you expect from switchmode terminal, of any amplifier available. Peak The PL380 amplifier’s immense electrical amplifiers, you’ll get more from Pat output can reach 185V, and long-term aver- power is carried on a four-layer PCB with Quilter’s ultimate Class D amplifier. More age power is about twice that of “typical” 3 ounce copper. Pat Quilter and his team audio quality. More high-end transparency. high power Class D designs. The PL380 patiently refined grounding and shielding More efficiency. won’t lose efficiency when driving reactive to keep switching noise out of the sensitive loads. That’s important in the real world of audio circuitry. Maximum Energy, Minimal Footprint concert sound. The PL380 more than doubles the power of previous 2RU PowerLight amplifiers, yet Unrivalled Audio Performance draws only modest amounts of AC power. From the ultra-fast modulator (its response Even at full power, the PL380 converts time is measured in nanoseconds) to the up to 85% of input power into speaker- high performance output filters, the PL380 moving, air-moving and audience-exciting PL380 output device (left) compared with has been designed to sound neutral, output. That means half the losses and half typical output devices. accurate and linear. Full-range distortion the heat of competitive Class D amplifiers. is exceptionally low, and free from “zero- This amplifier actually recycles “back EMF” crossing” distortion. energy from the loudspeakers. Simply Efficient Amplifier Topology Each channel uses a pair of large-die FETs in a package normally used for motor drives To prevent unauthorized adjustment of input attenuation settings, a security lockout plate is included with every PowerLight 3 amplifier. PL340 & PL325: World-Proven Smooth System Integration Global Regulatory Compliance PowerLight Technology and The PowerLight 3 Series is designed as a If your business is concert sound, you Ultimate Class H Performance complete system for high-power concert never know how far the next gig will take amplification, not just a group of products. you — or what kind of regulations you’ll find That’s why all PowerLight 3 amplifiers share when you get there. PowerLight 3 Series Choose Your Technology a common control, connector and indicator amplifiers carry both UL and CE approvals, Maybe you don’t need the PL380 amplifier’s layout: it simplifies building and/or reconfig- and meet world recognized FCC Class A 8 kW output. Perhaps you prefer the sound uring your racks, and keeps your wiring neat EMI limits for the PL380 and Class B for the of linear output amplifiers for your high- and clean. PL325 and PL340. frequency drivers. The PowerLight 3 Power Amplification System offers you two excep- You may want to use other amplifiers tional choices — the PL325 and PL340. alongside the PowerLight 3 Series. That’s Both amplifiers update QSC’s well-tested PL3 Series Watts per channel why all three of these amplifiers have both Powerlight 2 platform, a unique Class H Model 8Ω 4Ω 2Ω switchable input sensitivity and zero latency. technology that eliminates audible artifacts PL325 500 850 1250 caused by switching between tiers. Their PL340 800 1250 2000 Reliable Protection highly refined linear circuitry delivers the We take thermal overload as seriously as PL380 1500 2500 4000* cleanest output signal available in a profes- you do. PowerLight 3 Series fans speed up EIA 1 kHz 1% THD. *Burst mode testing required due to AC sional power amplifier. service current limitations if heat sinks rise above 55° C. Increased air flow is usually enough even during high Our latest PowerLight supply has larger level operation. Limiting begins above 80° C. capacitors and more robust semiconduc- Temperatures above 85° C only occur with tors for even higher peak power and energy fan or vent blockage: the amplifier will mute storage. As always, PowerLight is designed to prevent significant internal damage. for the places you work, tolerating surges and dips gracefully. Featuring a flexible architecture that provides users the choice of comprehensive, networked remote control, monitoring and DSP or the cost saving of a simple, straightforward analog input configuration. Rear Panels With Optional Clip Limiting tor that can handle 25 A continuous. That’s All The Right Choices Clip Limiter On/Off for each channel with almost twice the long-term power capacity Yellow LEDs. Designed as a backstop, this of some other amplifiers, and you’ll need to Flexible Input Connectors limiter converts hard clipping to a softer configure your AC distribution accordingly if Both Euroblock and parallel male / female form of peak clamping.