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QSC GX5 Stereo Power Amplifier   

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The QSC GX5 Stereo Power Amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. QSC de...Read More

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OVERVIEW

Maximum performance and portability with very flexible I/O.

The QSC GX5 Stereo Power Amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. QSC designers, headed by Pat Quilter, have optimized output and appearance of the rackmountable GX5 while reducing raw material cost and weight. The GX5 power amplifier provides full performance for 500 watt (Program) speakers and supplies maximum possible power to 4 ohm and 8 ohm loads. Owners of popular 4 ohm loudspeakers (dual-woofer, two-way models and many subwoofers) will find the 700 watt (4 ohm) power of the GX5 an ideal match.

The GX5 power amp uses a Class H system, based on key elements of the PLX Series, almost doubling power in the same size and weight. QSC design expertise allows the output devices to shift from low-power to high-power rails in less than a millionth of a second, ensuring that the output power is always right where it needs to be without excess loss.

FEATURES
  • Power levels matched to the most popular speakers used by entertainers
  • Optimized for maximum real-world headroom into 4Ω and 8Ω 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 ” less than 26 lbs (12.5 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

Order today and enjoy legendary QSC quality and reliability.

SPECIFICATIONS

GX5 Stereo Power Amplifier

  • Power rating:
    8Ω / both channels driven / 1 kHz: 500 W
    8Ω / single channel driven / 1 kHz; 600 W
    4Ω / both channels driven / 1 kHz; 700 W
    4Ω / single channel driven / 1 kHz; 850 W
    2Ω / both channels driven / 1 kHz: 350 W

    Distortion (typical): 20 Hz - 20 kHz: 1 dB below rated power 8Ω: less than 0.05% / 4Ω: less than 0.1%
    Signal to Noise: (20 Hz - 20 kHz) 100 dB
    Input Sensitivity: 1.2 Vrms
    Voltage Gain (8Ω): 34.4 dB
    Output Circuitry: 2-tier Class H
    Power Requirements (1/8 power, pink noise at 4Ω, 120 V):6A
    Frequency Response: 20 Hz - 20 kHz, +0, 1 dB
    Dynamic Headroom (4Ω): 2 dB
    Damping Factor: 100
    Input Impedance (Ω): 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
    Amplifier and Load Protection: Short circuit, open circuit, thermal, RF protection
    Load protected against DC faults
    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
    Rear Panel Controls: Full Range / Crossover switch
    100 Hz, 3rd order LP (sub), 2nd order HP (top)
    Dimensions (HWD): 3.5" (2RU) x 19" x 10.1" (89 mm x 483 mm x 257 mm)
    Weight Shipping / Net: 31 (14 kg) / 26 lbs (12 kg)
    Agency Approvals: UL, CE, RoHS/WEEE compliant
Reviews
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Review Snapshot

by PowerReviews
QSCGX5 Stereo Power Amplifier
 
4.6

(based on 31 reviews)

Ratings Distribution

  • 5 Stars

     

    (26)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (9)
  • Excellent sound (9)
  • Good power output (8)
  • Warm / comfy (4)
  • Portable (3)

Cons

No Cons

Best Uses

  • Performances (7)
  • Outdoor events / games (5)
  • Pro audio / DJ / mixing (4)
  • Home studio (3)
    • Reviewer Profile:
    • Experienced (6), Professional musician (3)

Most Liked Positive Review

 

Great bang for the buck

Did exhaustive investigating prior to purchase of this amp. Comparisons from crown to behringer and decided on this. Had it for a year now powering subs and mains in a band playing 4-6...Read complete review

Did exhaustive investigating prior to purchase of this amp. Comparisons from crown to behringer and decided on this. Had it for a year now powering subs and mains in a band playing 4-6 gigs a month in temps from -30 to 100. It has never hiccupped. More powerful than wattage indicates. More clean headroom in the amp than the 70 pound dinosaur it replaced that was rated at three times the power output.

VS

Most Liked Negative Review

 

Great Amp!

Love this amp! I run it less than half way up and its PLENTY loud for the DJ gigs I do... Only thing I don't like is the cooling fans are a little...Read complete review

Love this amp! I run it less than half way up and its PLENTY loud for the DJ gigs I do... Only thing I don't like is the cooling fans are a little loud (not that thats an issue when the musics on though)

Reviewed by 31 customers

Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

Excellent power amp.

By Mayhaw

from South Georgia

About Me Experienced

Verified Buyer

Pros

  • Easy To Use
  • Powerful

Cons

    Best Uses

    • Events
    • Home Studio
    • Performances
    • Professional Recording

    Comments about QSC GX5 Stereo Power Amplifier:

    After extensive research, I decided on the GX5. The quality is great. Can you find lighter, more powerful amps? Yes. Will they self-destruct? Probably. This one has been a work horse so far with no issues whatsoever. I use it for multiple systems but usually pushing a pair of old Peavey SP5Tis 70 percent of the time. I have never had an issue. Don't get me wrong, it is heavy. If it ever breaks, I will probably use it as a boat anchor but I don't foresee it breaking for years and years. I will buy more for larger setups.

    Comment on this reviewHelp Icon

     
    5.0

    Smooth, Simple, excellent performace

    By bkbrocks

    from Bentonville, AR

    About Me Experienced

    Verified Buyer

    Pros

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

    Cons

      Best Uses

      • Performances

      Comments about QSC GX5 Stereo Power Amplifier:

      I have used Mackie power for years and it was time to replace my 15yr old Mackies. I teamed up with a Driverack, and wanted to get a well aligned, clean, powerful, easy to hook and go power amps for my front of house. I looked and studied for months. I soon settles on the GXs form QSC. Great amp which has clean power to drive my EV Eliminator subs and tops. I have two EV Eliminator subs and tops on both side of the stage. This is for top 40/classic rock/original rock band. The GX3 drives the tops at 4ohms and the GX5 drives the subs @ 4ohms with great efficiency. No problems from me. The GX5, and GX3 has all the clean power I'll ever need.

      Comment on this reviewHelp Icon

      (4 of 4 customers found this review helpful)

       
      5.0

      Great bang for the buck

      By UP guitar player

      from Way up north

      About Me Professional Musician

      Pros

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

      Cons

        Best Uses

        • Events
        • Mobile DJ
        • Performances

        Comments about QSC GX5 Stereo Power Amplifier:

        Did exhaustive investigating prior to purchase of this amp. Comparisons from crown to behringer and decided on this. Had it for a year now powering subs and mains in a band playing 4-6 gigs a month in temps from -30 to 100. It has never hiccupped. More powerful than wattage indicates. More clean headroom in the amp than the 70 pound dinosaur it replaced that was rated at three times the power output.

        Comment on this reviewHelp Icon

         
        5.0

        Power for Samll venues

        By Flamenquito

        from Santa Fe, NM

        About Me Professional Musician

        Pros

        • Excellent Sound
        • Quiet Fan

        Cons

        • heavy

        Best Uses

        • Performances

        Comments about QSC GX5 Stereo Power Amplifier:

        I have owned a few QSC amps over the past 15 years, and have never been disappointed. The discription stated the wieght but carrying it in a case made it seem heavier then i had thought. The sound is great with good headroom for my needs, that being small venue performances (100 - 500 person max) and not loud environments, but rather concert situations, sitting to listen. Which brings me to the fact that the unit is actually 700w @ 4ohm per/ch not the 1000w as shown in the photos so when i recieved it i was a little surpised, though it sounds great, i am returning it for the GX7 for that extra headroom and the fact that it states on the site that it wieghs much less then the GX3 or the GX5.

        Comment on this reviewHelp Icon

        (2 of 2 customers found this review helpful)

         
        5.0

        Quality Amplifier

        By djmaye

        from Crivitz, WI

        About Me Novice

        Pros

        • Easy To Use
        • Portable
        • Powerful

        Cons

          Best Uses

          • Home Studio
          • Mobile DJ

          Comments about QSC GX5 Stereo Power Amplifier:

          Works perfectly for fully powering my 18" Peavey Black widow sub. Low-pass and high-pass filters built in work as expected and make external, expensive, and bulky crossovers completely unnecessary.

          Comment on this reviewHelp Icon

           
          5.0

          Liked it so much, bought a second one

          By JLNorthGA

          from Peacock Performing Arts Center

          About Me Experienced

          Ask me a question

          Verified Buyer

          Pros

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

          Cons

            Best Uses

            • Events
            • Mobile DJ
            • Performances

            Comments about QSC GX5 Stereo Power Amplifier:

            I have one GX5 for my main speakers and now I have one GX5 for my fill speakers and a GX7a for my subwoofers.

            Good, clean sound, plenty of headroom - just the thing for our venue (250 seat auditorium).

            Once you hear it and the sound it produces - you will be sold.

            Comment on this reviewHelp Icon

             
            5.0

            Clean Power @ Great Price

            By BC1225

            from Orlando, Florida

            About Me Experienced

            Ask me a question

            Pros

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

            Cons

              Best Uses

              • Great Monitor Amp

              Comments about QSC GX5 Stereo Power Amplifier:

              I needed to replace a (50-pound) Yamaha Power Amp that my band had been using for the past 20+ years. I needed power, light weight at a reasonable price.
              The GX5 was the answer! The 500/channel matched up perfectly to the JBL Eons that we use as monitors. The weight is 50% of what the old Yamaha was, which is appreciated when loading up.
              We play rock & roll so I haven't heard any fan noise.

              Comment on this reviewHelp Icon

              (0 of 36 customers found this review helpful)

               
              4.0

              Does NOT Play Nice With Powered Speakers

              By Goofy's Review

              from Florida

              About Me Experienced

              Pros

              • Excellent Sound

              Cons

              • Limited Functions

              Best Uses

              • Mobile DJ

              Comments about QSC GX5 Stereo Power Amplifier:

              Attempted "more power" by adding this amp to a set of powered speakers. What I got was a lot of distortion. They work good on their own and should...give you the power you need for most applications. If you want an amp with "guts" you better look elsewhere or be disappointed. For my "geezer" parties it works fine but for a younger crowd....not so much....

              Comment on this reviewHelp Icon

              (1 of 2 customers found this review helpful)

               
              5.0

              Great Power Amp

              By Big Daddy

              from NY

              About Me Professional Musician

              Ask me a question

              Pros

              • Easy To Use
              • Excellent Sound
              • Very Clean Power

              Cons

              • Fan Is A Bit Loud
              • Fan Is Bit Loud
              • Fan Is Loud

              Best Uses

              • Events
              • Live Sound Re- Enforcment
              • Performances

              Comments about QSC GX5 Stereo Power Amplifier:

              GX5 is Powerful and Clean !
              I use one channel to power my JBL 15's Mains
              and the other channel to power 2-12" floor monitors.
              power/Vol knobs has never been past the 1-2 o'clock position.
              going to buy one more for a pair of sub-woofers
              and get rid of the powered ones.

              CON's not that this is a deal breaker
              The Fan it a bit loud but once music is going you don't hear it at all.
              and these unit are a bit heavy! but its the price you have to pay for a true power rating not like these whimpy D Class Power amps that weigh nothing and say thier 1000 watts but sound like they are really 200 watts

              price is reasonable too!

              Comment on this reviewHelp Icon

              (3 of 3 customers found this review helpful)

               
              5.0

              QSC has a winner!

              By JLNorthGA

              from Peacock Performing Arts Center

              About Me Experienced

              Ask me a question

              Pros

              • Easy To Use
              • Excellent Sound
              • Powerful

              Cons

                Best Uses

                • Events
                • Performances

                Comments about QSC GX5 Stereo Power Amplifier:

                We have a pair of QSC RMX 850 amplifiers. When our Carvin amplifier started to go, we knew we had to replace it. We looked at the QSC RMX 850s and saw that the GX5 was the same price.

                Wow! What a difference. The GX5 is so much better and cleaner sounding than our old Carvin. It is also more powerful than the RMX 850 amps.

                This is a main amplifier for our house auditorium sound. It has performed quite well. I like it so much that the RMX 850's will be replaced with a GX5 and a GX7 when we can afford the spare cash.

                Comment on this reviewHelp Icon

                Displaying reviews 1-10

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