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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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  • MSRP:
    $499.00
  • Your Savings:
    - $99.01
  • Shipping (48 Contiguous U.S. States)
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  • Your Price:
    $39999

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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 29 reviews)

Ratings Distribution

  • 5 Stars

     

    (24)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

100%

of respondents would recommend this to a friend.

Pros

  • Excellent sound (8)
  • Easy to use (7)
  • Good power output (6)
  • Warm / comfy (3)

Cons

No Cons

Best Uses

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

Most Liked Positive Review

 

QSC has a winner!

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...Read complete review

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.

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 29 customers

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Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

Great bang for the buck

By 

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 review

     
    5.0

    Power for Samll venues

    By 

    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 review

    (2 of 2 customers found this review helpful)

     
    5.0

    Quality Amplifier

    By 

    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 review

       
      5.0

      Liked it so much, bought a second one

      By 

      from Western NC

      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 review

         
        5.0

        Clean Power @ Great Price

        By 

        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 review

          (0 of 19 customers found this review helpful)

           
          4.0

          Does NOT Play Nice With Powered Speakers

          By 

          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 review

          (1 of 1 customers found this review helpful)

           
          5.0

          Great Power Amp

          By 

          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 review

          (3 of 3 customers found this review helpful)

           
          5.0

          QSC has a winner!

          By 

          from Western NC

          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 review

            (2 of 2 customers found this review helpful)

             
            5.0

            Very nice.

            By 

            from Musicians Friend.

            About Me Novice

            Verified Buyer

            Pros

            • Easy To Use
            • Excellent Sound
            • Powerful

            Cons

              Best Uses

              • Amateur Recording
              • Home Studio

              Comments about QSC GX5 Stereo Power Amplifier:

              easy to use and sounds great

              Comment on this review

              (5 of 5 customers found this review helpful)

               
              5.0

              Nice Power Amp

              By 

              from california

              Comments about QSC GX5 Stereo Power Amplifier:

              I just got this amp to replace a crummy Nady one that went bad. It has been excellent so far powering a pair of 15 inch mains and a pair of 12 inch monitors. There are alot of hookup options and plenty of power. I previously bought a Peavey IP3000 and it was a piece of junk. I returned it for the QSC and am really satisfied now. The QSC GX5 is a good choice for a small to mid-sixe PA setup.

              Comment on this review

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