Introduction

Thank you for purchasing this QSC power amplifier. Please read the following directions to obtain the best results. This manual covers all models of the PLX series. Illustrations show the PLX 1804 to be representative of the PLX 1104 and 1804 models, while the PLX 3602 illus- tration is representative of the PLX 1802, PLX 2502, PLX 3102, and PLX 3602 models.

The PLX 1104 and PLX 1804 models feature: •4-ohm minimum impedance •Speakon loudspeaker connections

•QSC PowerLight high-performance, compact, and light weight switching power supply •Complete amplifier protection

•XLR and 1/4-inch TRS balanced input connectors •Gain controls are recessed and 21-step detented

•Active inrush current limiting eliminates need for power sequencing •LED indicators for power, input signal presence, -10 dB, and clip/protect •Rear chassis tabs and front panel design protect controls and connectors

In addition, the PLX 1802, PLX 2502, PLX 3102, and PLX 3602 models feature: •2-ohm minimum impedance

•Bridgeable output

•Binding post loudspeaker connections •Clip limiter

•33 Hz low frequency filter •Low-cut/full-range/high-cut selector •Stereo/bridge mode/parallel input selector

•Front panel LED indicators for parallel and bridge modes

Unpacking

Factory packed carton contains: •PLX amplifier

•User's manual

•Adhesive rubber feet (for non-rack mount applications) •IEC-type detachable power cord

Use the same type carton when shipping the amplifier.

Front Panel

1- Power Switch

3- LED Indicators

 

2- Cooling Air Exhaust Vents

4- Gain Controls

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QSC Audio PLX 2502, PLX 3102, PLX 1802, PLX 1804, PLX 3602, PLX 1104 user manual Introduction, Unpacking, Front Panel

PLX 3602, PLX 2502, PLX 1802, PLX 1804, PLX 3102 specifications

The QSC Audio PLX 1104 is a versatile and powerful power amplifier designed to meet the demands of live sound applications, installations, and more. Renowned for its exceptional performance and reliable operation, the PLX 1104 has become a preferred choice for sound engineers and audio professionals alike.

One of the standout features of the PLX 1104 is its lightweight design. Weighing in at just 10.5 pounds, this amplifier is easy to transport and install, making it ideal for mobile applications. Its compact form factor allows for efficient use of space in equipment racks and allows for quick setups and takedowns during events.

The QSC PLX 1104 outputs an impressive 1,000 watts per channel at 8 ohms and 1,200 watts at 4 ohms, providing ample power for driving a wide range of loudspeakers. This capability makes it suitable for various applications, from small clubs to larger venues requiring robust sound reinforcement. The amplification system utilizes a high-efficiency design that significantly reduces power consumption and heat generation, enhancing reliability and longevity.

In terms of connectivity, the PLX 1104 features balanced XLR inputs and Neutrik Speakon outputs, ensuring compatibility with a broad array of sound systems. Its intuitive control layout, including a rear-mounted gain control for each channel, allows for easy dial-in of the desired output level.

The PLX 1104 employs QSC's advanced proprietary technology to deliver exceptional audio quality. This includes sophisticated output transistors and a high-frequency protection circuit, ensuring that the amplifier provides clean and undistorted sound, even at high output levels. Furthermore, the built-in thermal management system helps to prevent overheating, further increasing the reliability of the amplifier in demanding environments.

Additional features of the PLX 1104 include a switchable low-frequency filter that can help to improve the overall clarity of sound, particularly in live sound scenarios where low-end muddying can occur. The amplifier is also equipped with a front-panel LED status indicator that serves as a visual cue for the operational status of the unit.

In summary, the QSC Audio PLX 1104 is a testament to modern amplifier technology, combining lightweight portability with powerful performance and rich features. Its ability to deliver high-quality audio while being exceptionally user-friendly makes it a go-to solution for audio professionals who require both reliability and flexibility in diverse sound reinforcement situations.