QSC PLX1804 Stereo Power Amplifier


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The PLX1804 brings the same performance and technology as the rest of the PLX2 Series to applications that don't require bridged or 2 ohm operation. Designed to power one or two speakers from each amplifier channel (4 ohm minimum loading), this model offer a simplified feature set while retaining genuine, uncompromised PLX performance and technology. Weighing just 13 pounds (5.9 kg), the "plug-and-play" PLX1804 is perfect for ultra-portable rigs, as well as reference-quality playback. Rated at 600 watts per side at 8 ohms and 900 watts at 4 ohms.

The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight™ technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. With power ratings up to 3,600 watts, PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.

Choose from either 1/4" or XLR balanced inputs and banana plug or Neutrik Speakon outputs.

PLX2 series amplifiers have the refined, rugged good looks usually associated with high performance racing cars, competition bikes, professional power tools, and high power machinery. A solid, cast-aluminum front panel adds professional style to any rack while also acting as an integral I-beam, rigidly tying the chassis together for years of on-the-road reliability.

Additional mechanical touches such as the side stiffening rails, rear rack ears and cable tie anchor points attest to QSC's years of experience and attention to detail. QSC has even designed the integrated front handles so the amplifier slides into a rack without scraping the installers fingers on the rack sides. The exterior appearance of PLX2 amplifiers conveys what's inside - simply and truly, 13 to 21 pounds of the most advanced professional power amp on the planet.

PowerLight Technology
PowerLight switchmode technology replaces a large, heavy AC transformer (typically 20 lbs. / 9 kg) with a highly efficient and lighter-weight active design. Conventional AC transformers provide 60 energy pulses per second. The PowerLight supply delivers 100,000 pulses per second. More pulses make it easier to provide on-demand power for the amplifier's output section. The power supply doesn't "sag" so bass notes stay full and powerful while the high end remains crisp and clean.

Audio Quality
PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.

Things You Will Get:

  • Power Amplifier
  • Power Cable
Series PLX2 Series
Model PLX1804 Stereo Power Amplifier


by PowerReviews
QSCPLX1804 Stereo Power Amplifier

(based on 1 review)

Reviewed by 1 customer

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Excellent Power and Sound and Light Too


from Roselle, IL

About Me Professional Musician

Verified Reviewer


  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • Portable
  • Powerful


    Best Uses

    • Events
    • Home Studio
    • Mobile DJ
    • Performances
    • Professional Recording

    Comments about QSC PLX1804 Stereo Power Amplifier:

    I would use this amp for any kind of program - band, dj you name it whatever your choice. Very easy to use, very lightweight(13 LBS) Easy set up and very powerful. Forget the nonsense about having to have a 40 lb amp to get a great sound. This has all the sound without all the weight. Buy it, you won't be sorry or disappointed.

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    PLX1804 Stereo Power Amplifier

    The manufacturer's warranty covers parts and labor for six years from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.

    Information not available