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

Performance and World-Proven

PowerLight Technology

Whatever you expect from switchmode amplifiers, you’ll get more from Pat Quilter’s ultimate Class D amplifier. More audio quality. More high-end transparency. More efficiency.

Maximum Energy, Minimal Footprint The PL380 more than doubles the power of previous 2RU PowerLight amplifiers, yet draws only modest amounts of AC power. Even at full power, the PL380 converts up to 85% of input power into speaker- moving, air-moving and audience-exciting output. That means half the losses and half the heat of competitive Class D amplifiers. This amplifier actually recycles “back EMF” energy from the loudspeakers.

Real World Headroom

Audition the PL380 head-to-head with any high power Class D amplifier on the planet. We believe the PL380 has the highest overall efficiency, from AC plug to speaker terminal, of any amplifier available. Peak output can reach 185V, and long-term aver- age power is about twice that of “typical” high power Class D designs. The PL380 won’t lose efficiency when driving reactive loads. That’s important in the real world of concert sound.

Unrivalled Audio Performance

From the ultra-fast modulator (its response time is measured in nanoseconds) to the high performance output filters, the PL380 has been designed to sound neutral, accurate and linear. Full-range distortion is exceptionally low, and free from “zero- crossing” distortion.

Simply Efficient Amplifier Topology Each channel uses a pair of large-die FETs in a package normally used for motor drives

and other extreme applications. This system is simple and reliable, with far more safety margin than normal audio devices.

Massive Where It Counts

The PL380 amplifier’s immense electrical power is carried on a four-layer PCB with

3 ounce copper. Pat Quilter and his team patiently refined grounding and shielding to keep switching noise out of the sensitive audio circuitry.

PL380 output device (left) compared with typical output devices.

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QSC Audio 3 Series manual Real World Headroom, Unrivalled Audio Performance, Massive Where It Counts
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3 Series specifications

The QSC Audio 3 Series is a remarkable lineup of professional audio products designed to deliver exceptional sound quality and reliability. Tailored for various applications including touring, rental, and installation, this series exemplifies QSC's commitment to innovation and performance.

One of the standout features of the 3 Series is its advanced Class-D amplification, which not only provides high efficiency but also produces remarkable power density. This means that users can achieve greater output with less energy consumption, making it an environmentally friendly choice without sacrificing performance. The amplifiers in this series are designed to provide high headroom, ensuring dynamic musical peaks are handled effortlessly.

In addition, the 3 Series incorporates QSC’s unique Directivity Matched Transition (DMT) technology. This innovation ensures that the sound remains consistent across the listening area, providing a more uniform response. By carefully controlling the dispersion of sound, DMT works to minimize dead spots, allowing audiences to enjoy a balanced mix regardless of their location within the venue.

Another significant characteristic of the QSC 3 Series is its robust construction. Built to withstand the rigors of professional use, the speakers are housed in durable enclosures designed to handle the demands of both indoor and outdoor environments. The components are engineered for longevity, ensuring that users can rely on these systems for years of exceptional performance.

Moreover, the 3 Series integrates seamlessly with QSC's Q-SYS Ecosystem, allowing for digital signal processing (DSP) and network control. This connectivity feature enhances flexibility, enabling easy integration into existing systems and improving overall workflow. With customizable presets and intuitive software, sound engineers can fine-tune every aspect of audio delivery to match the specific needs of any event.

The QSC Audio 3 Series also emphasizes versatility, offering a range of models that cater to different sound reinforcement needs. From small portable units suitable for intimate venues to larger systems capable of filling concert halls, this series has something for everyone.

In conclusion, the QSC Audio 3 Series combines cutting-edge technology, efficient design, and superior sound quality, making it a preferred choice among audio professionals. Whether for live performances, corporate events, or installations, the 3 Series stands out as a reliable and high-performing audio solution.
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