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QSC GX7 2 Ch PA Power Amplifier 725WItem # 77754

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The Ultra Powerful and Affordable QSC GX7 Amp Delivers Big Power!

The GX7 amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. The GX7 amplifier delivers just the right amount of power to the most popular speakers used by entertainers. Typically, loudspeaker manufacturers recommend an amplifier with power output equal to the speaker's Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating. The GX7's 1000 watts will very capably power many of today's popular subwoofers or two typical 8 ohm speakers per channel.

The GX7 adds the road-proven PowerLight supply to the Class H output section, for more overall output power and additional weight savings. The result is one of the highest power-to-weight ratios in the industry. A low-noise variable-speed fan with rear-to-front airflow keeps amplifiers and racks cool.

GuardRail protection delivers full peak power while preventing detrimental overloads. During excessive clipping, or extreme overheating, GuardRail reduces gain just enough to preserve the integrity of the music, protect the speakers and keep the audience excited, without unprofessional distortion levels or shutdowns.

A subwoofer reduces strain on the full-range speaker, allowing it to play louder, or letting a smaller speaker do the same job. The GX7 supports this mode with a Crossover switch that splits the full-range input entering Ch 1, sending 20 Hz -100 Hz to the sub (Ch 1) and 100 Hz - 20 kHz to the top box (Ch 2). The front panel gain controls balance the sub and top box, while GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range. GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range.

Features:
  • Power levels matched to the most popular speakers used by entertainers
  • Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems
  • Inputs: XLR, 1/4" TRS and phono input connectors for compatibility with any source
  • Outputs: Speakon® combo accepts, 1/4" (TS) plugs or Speakon 2-pole and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems
  • Minimum depth chassis (10.1"/257 mm) fits in compact, inexpensive effects racks
  • Lightweight - Only 15.5 lbs (7 kg)
  • Detented gain controls for precise setting and matching of sensitivity
  • GuardRail™ automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show
  • Front panel LEDs monitor Power, Signal and Clipping
  • Subwoofer/Satellite crossover built-in
Specifications:
  • 8 ohms / 1 kHz (both channels driven) - 725 W
  • 8 ohms / 1 kHz (single channel driven) - 800 W
  • 4 ohms / 1 kHz (both channels driven) - 1000 W
  • 4 ohms / 1 kHz (single channel driven) - 1200 W
  • Distortion (1 dB below rated power, 1 kHz) - 8 ohms: less than 0.02%, 4 ohms: less than 0.05%
  • Signal to Noise (20 Hz - 20 kHz) - 100 dB
  • Input Sensitivity - 1.2 Vrms
  • Power Requirements (1/8 power, pink noise at 4 ohms, 120V) - 10.1 amps
  • Frequency Response - 20 Hz - 20 kHz, +0, -1 dB
  • Dynamic Headroom (4 ohms) - 2 dB
  • Input Impedance (ohms) - Greater than 20k (balanced)
  • Maximum Input Level - +24 dB (16 Vrms)
  • Input Connectors (each channel)- 3-pin XLR and 1/4" TRS, balanced, parallel, phono, unbalanced
  • Output Connectors (each channel) - Speakon®, 1/4", Binding Posts
  • Front Panel Controls and Indicators - Gain controls, 21 detents, red clip LEDs, proportional, 0.1% THD threshold, green signal LEDs, threshold -35 dB, blue power LED, AC on

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REVIEW SNAPSHOT®

by PowerReviews
QSC GX7 2 725W 2 Ch PA Power Amplifier
 
4.0

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (0)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Good power output (4)
  • Great sound quality (4)

Cons

    Best Uses

    • Pro audio / DJ / mixing (4)
      • Reviewer Profile:
      • Pro audio / DJ / mixing (4)
      • Was this a gift?:
      • No (4)

    Reviewed by 4 customers

    Sort by

    Displaying reviews 1-4

    Back to top

     
    4.0

    QSC GX7 725 W 8 OHMS

    By SONIDO TROPICOSO

    from GLENCOE MN

    About Me Pro Audio / DJ

    Verified Reviewer

    Pros

    • Energy Efficient
    • Good Power Output
    • Great Sound Quality

    Cons

      Best Uses

      • DJ / Mixing
      • Larger Rooms

      Comments about QSC GX7 2 725W 2 Ch PA Power Amplifier:

      I have 2 amp to power stage 4 cerwin vega JE-36b jr bass , sounds great it's working perfect...

      • Was this a gift?:
      • No
       
      4.0

      Great Amp

      By JD Fox

      from Utah

      About Me Pro Audio / DJ

      Verified Buyer

      Pros

      • Good Power Output
      • Great Sound Quality

      Cons

        Best Uses

        • DJ / Mixing
        • Larger Rooms

        Comments about QSC GX7 2 725W 2 Ch PA Power Amplifier:

        I use this amp to power stage monitors. It is light and sounds great.

        • Was this a gift?:
        • No
         
        4.0

        Clean Power

        By DJ Roach

        from Woodland Hills, CA

        About Me Pro Audio / DJ

        Verified Reviewer

        Pros

        • Easy To Set Up
        • Energy Efficient
        • Good Power Output
        • Great Sound Quality

        Cons

          Best Uses

          • DJ / Mixing

          Comments about QSC GX7 2 725W 2 Ch PA Power Amplifier:

          I just bought this amp, I have it hooked up to an Alesis 3630, dbx 215s eq, & a BBE 482. It's all pushing a pair of JBL JRX Dual 15's! This amp is powerful. I had i cranked up for over an hour & it did it's job. I appreciate the built in fan! My amp rack got hot! Luckily I have a back up fan! You can't go wrong with QSC!!!

          • Was this a gift?:
          • No
           
          4.0

          Excellent power at an unbelievable price

          By DJRob323

          from NY,NY

          About Me Pro Audio / DJ

          Verified Reviewer

          Pros

          • Accurate Controls
          • Easy To Set Up
          • Good Power Output
          • Great Sound Quality
          • Lightweight
          • Runs Cool

          Cons

          • Limited Functions

          Best Uses

          • DJ / Mixing

          Comments about QSC GX7 2 725W 2 Ch PA Power Amplifier:

          I just picked this amp up last week and used it at my first gig last night. (it was the 2nd gx7, the first one was DOA and had to exchange it, weird)I'm using it to power jbl mrx515 cabs and it is a great match. It puts out so much power to them, i was afraid to push it to clipping they were so loud. @ 725 watts x2, it's amazing how they pack so much power into a 15.5 lb frame. And for the price, i don't know if you find anything else close combined with the qsc quality. Great value/performance ratio. The specs s/n ratio, thd, and damping could be better, but you'll have to pay hundreds more for the powerlight amps to get studio quality. For my use as a mobile dj, it worked just fine for me and the sound was amazing. This should provide years of trouble-free use.

          • Was this a gift?:
          • No

          Displaying reviews 1-4

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          Do you have questions about this product?

          get answers from real customers and in-house experts with AnswerBox.

          6 Questions | 6 Answers
          Displaying questions 1-6
          • Q:

            Can you run this amp in briged mono?
            Asked on 6/13/2013 by dmad from United States

            1 answer

            • Staff Reviewer

              A:

              Yes, the Qsc GX7 can be bridged mono:
              8 ohms / 1 kHz (single channel driven) - 800 W.
              4 ohms / 1 kHz (single channel driven) - 1200 W.

              Answered on 6/14/2013 by DJ Ginormou5 from Santa Ana, CA
          • Q:

            I am currently using for mobile DJ work a Mackie M-2600 power amp to power a pair of Electro Voice SX250 speakers and for bigger venues I also run a pair of EV Eliminator I subs. The Mackie does a great job, but it weighs a ton! (and I'm not getting any younger!!) Would the QSC GX7 handle this application? Can you suggest any other possible light weight PA amps that would be comparable or better than my Mackie? Thanks!
            Asked on 8/2/2012 by DJ Bob from Newville, PA

            1 answer

            • Staff Reviewer

              A:

              Yes this would be a great amplifier to choose. It is very light weight and good quality.

              Answered on 8/7/2012 by Anonymous
          • Q:

            I have (2)behringer 2520's 2,000watt each speakers 500watt continuous. Will this amp work perfectly running these speakers?
            Asked on 2/18/2012 by djmadrix from Zuni, NM

            1 answer

            • Staff Reviewer

              A:

              Yes, The QSC GX7 will work perfectly with your Behringer speakers.

              Answered on 2/20/2012 by DJ Menergy from Santa Ana, CA
          • Q:

            Can this amp push a pair of JBL JRX 125's?
            Asked on 10/11/2011 by Anonymous from Woodland Hills, CA

            1 answer

            • Staff Reviewer

              A:

              Yes. It will give you more than enough headroom.

              Answered on 10/12/2011 by Donovan from Cypress
          • Q:

            how bigger area will these speakers cover,give me a square footage.
            Asked on 9/20/2011 by geno from birmingham, ala.

            1 answer

            • Staff Reviewer

              A:

              Great question. These speakers are a little different in area coverage. Please contact us directly for a sure answer. Thank you

              Answered on 10/11/2011 by Dj Scumboy from Cypress, CA
          • Q:

            Hi,

            Is this power amp rated for 230V mains in Australia or only 110-120V?
            Asked on 3/15/2011 by Alex from Sydney, Austrlaia

            1 answer

            • Staff Reviewer

              A:

              The rate on this amp is 120V.

              Answered on 3/21/2011 by Anonymous
          Displaying questions 1-6

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