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QSC GX5 Stereo Power Amplifier  

Item #: 
1274034490400
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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 designers, headed by Pat Quilter, have optimized outp... Read More

Price:
$39999.00
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Overview

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
Specifications
  • 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
Warranty

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  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
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  • Customer Reviews
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Review Snapshot

by PowerReviews
QSCGX5 Stereo Power Amplifier
 
4.8

(based on 18 reviews)

Ratings Distribution

  • 5 Stars

     

    (17)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

Most Liked Positive Review

 

Solid Power in Varying Conditions.

Let me start by saying my GX5 has seen about everything you can imagine in its short 6 week out of the box life. I live in Georgia and the heat and the humidity...Read complete review

Let me start by saying my GX5 has seen about everything you can imagine in its short 6 week out of the box life. I live in Georgia and the heat and the humidity here are often pushing the heat index to well over 100 degrees. I have done 3 outdoor gigs with this amp pushing a pair of JBL JRX 115's and one JRX 118s and it pushes them beautifully. The built in Crossover is really nice because splitting it out at 100 hz really has helped me push my mids/highs harder to provide enough sound for the outdoor gigs. My GX5 has even been run from a 35 dollar power inverter from a retail giant who shall remain nameless and provided music for a beach party i had the privilage of DJing. This is an all around great amp with very versitile inputs and outputs that make it possible for anyone not playing at 2 ohms or bridging channels to have a great sound at a not so discouraging price. QSC has been great for me thus far and i am just about convinced that there no other power amp company that is worth my time. Thanks QSC

VS

Most Liked Negative Review

 

Did not work right out of the box,!! Not Happy!!

i just got a new QSC GX5 and was really excited, cause i had always used the rmx amps, and had great luck. well i take this one out of the box and...Read complete review

i just got a new QSC GX5 and was really excited, cause i had always used the rmx amps, and had great luck. well i take this one out of the box and turn it on and the clip lights are on no sound and signal lights are blinking with no signal goin to the amp. Now i have to make another trip back to return it,luckily i had a back up amp.. will not buy again! ,

Reviewed by 18 customers

Displaying reviews 1-10

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5.0

I would buy again!

By Joel Y La Uni-K

from Bronx, NY

About Me Professional Musician

Verified Buyer

Pros

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

Cons

    Best Uses

    • Events
    • Performances

    Comments about QSC GX5 Stereo Power Amplifier:

    Powers my Yamaha S115V with ease! Would buy again!

     
    5.0

    Great amp

    By DJ Kleen

    from Lafayette La

    About Me Experienced

    Pros

    • Easy To Use
    • Excellent Sound
    • Portable
    • Powerful

    Cons

      Best Uses

      • Mobile DJ

      Comments about QSC GX5 Stereo Power Amplifier:

      Great addition to my rack of RMX and PLX amps. Using it for my 12 inch EV tops! very light. sound is good! great for the price!

      (1 of 1 customers found this review helpful)

       
      5.0

      WOW!!!

      By S & L PRO DJ SERVICES

      from Mcallen ,TX

      Comments about QSC GX5 Stereo Power Amplifier:

      I purchased this power amp a few months back and its still working the way it was when i first bought it. The power output is amazing , i use it to power 2 peavey djs4. This amp is without a doubt powerful and a bang for the buck. If you provide a dj service and looking to power a crowd of 500 peoople this amp with the right speakers will do the job!!! This power amp its built like a tank, it exeeded my expectations when i first heard it and the quality is just outta this world. ALL IN ALL ITS AN AWESOME POWER AMP! I am planning to purchase a gx7 soon to get the most out of my speakers, i dont have to but i just wanna be able to push them to their program power =). QSC GREAT JOB!!!

      (2 of 2 customers found this review helpful)

       
      1.0

      Did not work right out of the box,!! Not Happy!!

      By matthew ribble

      from Corning NY

      Comments about QSC GX5 Stereo Power Amplifier:

      i just got a new QSC GX5 and was really excited, cause i had always used the rmx amps, and had great luck. well i take this one out of the box and turn it on and the clip lights are on no sound and signal lights are blinking with no signal goin to the amp. Now i have to make another trip back to return it,luckily i had a back up amp.. will not buy again! ,

      (1 of 1 customers found this review helpful)

       
      5.0

      Fantastic PA Head

      By Paul Augustyniak

      from Northern NJ

      Comments about QSC GX5 Stereo Power Amplifier:

      Using the amp for my band's mains (Cerwin Vega V152s), Soundcraft MFX1-12 mixer. Plenty of volume for the typical small-to-medium local club. Follow the manufacturer's advice and set the volume controls on the amp's front panel to the desired volume level when your mixer master meters are averaging 0dB.

      (2 of 2 customers found this review helpful)

       
      5.0

      Crank that Mr. DJ!!!!!!

      By DJ N33KO

      from Canton Michigan

      Comments about QSC GX5 Stereo Power Amplifier:

      This amp is amazing! I use it for my gigs and it works PERFECT!! I do house, trance, top40, an almost any other type of music. This amp doesn't seem to fail. I power two EVsx300's at 300w and the 500w per channel gives me just enough headroom. I'm not going to complain because of the price is so great!! It can run itself and protect itself too! If i were a new/mid range DJ looking for an amp with this wattage, i would definitely buy this.

      (3 of 3 customers found this review helpful)

       
      5.0

      What an AMAZING amp

      By Pappas

      from Canton MIchigan

      Comments about QSC GX5 Stereo Power Amplifier:

      I got this amp about a month ago, and this thing is a tank. Never ever runs hot, and can handle my speakers. My old amp caught fire because it ran hot too much but this never does. It has a built in security just in case it does run hot. Also, it lets you know when your about to blow your speakers (for all you people who like to crank it up all the way!!!). Never gonna switch to another product. I am VERY happy with this and QSC is amazing.

      (5 of 5 customers found this review helpful)

       
      5.0

      Don't Worry About Budget!

      By Jeff

      from Jensen Beach, Florida

      Comments about QSC GX5 Stereo Power Amplifier:

      Even if your budget isn't an issue, these are still worth looking into. I've been in music for more years than I care to admit. I had some older model amps that I wanted to change out. Powered speakers were out of my price range. I really looked into all the amps that were out there. I've always been a QSC fan but I had to look into my other options. For a gigging band with a set of mains and a set of subs, these are all you need. I've done indoor and out door events with these. I run two 15" 2 way mains and two 18" subs. I use a DBX drive rack PA (awesome piece of equipment, if you take the time to learn how to use it), then go directly to two BBE 882i Sonic Maximizers. One for the mains and one for the subs. I ran these from 9am to 4pm yesterday. Five bands and a bunch of prerecorded music. I took the time to set my Drive Rack up to maximize my output when I bought these. I never clipped and never had an issue with over heating. These amps worked flawlessly all day. The power they produce for even an outdoor event was to be admired. Especially for the cost! No problems at all. If you are interested in these, go to the QSC website. Review the info and use the online speaker and amp tools thats there. It sets you up. There is a GX7 thats coming out in 2011 for the 725 watt group. If it's anything like the GX3 & GX5, no one will be able to complain. I know I can't. I love these amps.

      (4 of 5 customers found this review helpful)

       
      5.0

      OMG great power amp

      By ian

      from owego ny

      Comments about QSC GX5 Stereo Power Amplifier:

      i have 3 GX5's and i cant get over them. i have a set of Yamaha br15 for one power amp. a set of EV Eliminator subs and a set of Legion EMI subs, and the power amps run the speakers great and the sound is so crisp.

      (10 of 10 customers found this review helpful)

       
      5.0

      W O W !!

      By The "E" machine !!

      from San Bernardino Calif

      Comments about QSC GX5 Stereo Power Amplifier:

      Bought this to power my two dual 15's (500 watt each ) DJ system..W O W !! what incredible sound !!I have the dials almost half way and still 55% of power left !! This is deff the way to go!! Thanks QSC !! JOB WELL DONE !! "E MACHINE !!"

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