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Everything In Music Since 1958
Everything In Music Since 1958

QSC GXD8 4500 Watt Processing Amplifier

Out of Stock
Original price $1,292.19
Original price $1,292.19 - Original price $1,292.19
Original price $1,292.19
Current price $1,049.99
$1,049.99 - $1,049.99
Current price $1,049.99
Condition: New
About Inventory Status

Call or text us at 301-946-8808.

In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

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The QSC GXD8 Processing Power Amplifier Is the Champ in Pound for Pound Power

  • High peak output power with up to a whopping 4500 Watts
  • Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4Ω and 8Ω speaker systems
  • Class D output stage with a universal power supply for high performance and efficiency
  • Extensive and powerful loudspeaker processing built in. Includes high and low-pass filters, 4-band parameteric EQ, limiting, and delay
  • E Series Entertainment System DSP Tunings are now available for GXD processing amplifiers
  • Large LCD display simplifies amplifier setup and indicates amp status
  • Inputs: Parallel XLR and 1/4-inch TRS connectors for compatibility with any source while providing convenient loop-thru capability
  • Precision rotary encoders for gain and DSP parameter control
  • Outputs: Professional binding post and NL4 connectors (compatible with NL2) provide for mono and bi-amp speaker connections
  • Digital limiting automatically protects the amplifier from damage due to temperature rise or overdrive
  • Adjustable speaker protection to match your loudspeaker's power and impedance
  • Front panel LEDs indicate signal presence, input overload, and amplifier clipping


  • 8Ω dynamic, both channels driven: 1500 watts per channel
  • 4Ω dynamic, both channels driven: 2250 watts per channel
  • 8Ω continuous, both channels driven: 800 watts per channel
  • 4Ω continuous, both channels driven 1200 watts per channel
  • Distortion (typical) 1 kHz at full rated power: less than 1% THD
  • Signal to Noise (A weighted, 20 Hz-20 kHz): 100 dB
  • Input Sensitivity: 3.9 Vrms
  • Maximum Voltage Gain: 36.5 dB
  • Output Circuitry: Class D
  • Power Requirements: 1/8 power at 4Ω
  • 100 V AC: 6.2 A
  • 120 V AC: 5.6 A
  • 230 V AC: 3.2 A
  • Frequency Response (20 Hz–20 kHz): +0.7 dB, -0.8 dB
  • Dynamic Headroom (4Ω): 2.73 dB
  • Damping Factor (8Ω): 100
  • Input Impedance: 20 kΩ (balanced), 10 kΩ (unbalanced)
  • Maximum Input Level: +23.5 dBu
  • Input Connectors (each channel): 3-pin XLR/F / 1/4-inch TRS, balanced
  • Output Connectors (each channel): NL4, binding posts
  • NL4 pinout
    • Channel A on 1+, 1-; Channel B on 2+, 2-
    • Channel B on 1+, 1-
  • Amplifier and Load Protection
    • Short circuit, open circuit, thermal, RF protection
    • Load protected against DC faults
  • Front Panel Controls and Indicators
    • 2 × Rotary Encoders
    • 3 × Operational buttons (HOME, ENTER, EXIT)
    • 2 × Green Signal LEDs indicate signal presence
    • 2 × Red A/D Clip LEDs indicate input over-drive and/or amplifier current clipping
  • Blue Power LED ring indicates AC on
  • 2.12" × 1.0", 256 × 128 pixel LCD
  • DSP Functions
    • High-pass filter, 4th-order Linkwitz-Riley, adjustable frequency 20 Hz to 4 kHz
    • Low-pass filter, 4th-order Linkwitz-Riley, adjustable frequency 60 Hz to 4 kHz
    • 4-band parametric EQ with variable frequency, gain, and bandwidth
    • Peak limiter with power, aggressiveness, and impedance selection
    • Delay 50 msec max.
  • Product Dimensions (H×W×D)
    • 89 × 483 × 259 mm
    • 3.5 (2 RU) × 19 × 10.2 in
  • Carton Dimensions (H×W×D)
    • 600 × 370 × 153 mm
    • 23.6 × 14.6 × 6 in
  • Net Weight: 6 kg / 13.2 lb
  • Shipping Weight: 7.9 kg / 17.4 lb
  • Agency Approvals: UL, CE, RoHS/WEEE compliant
  • Carton and Contents: Power cable and quick start guide

Manufacturer: QSC Audio
Model: GXD8
SKU: I345033-0-WHXA

We are Chuck Levin's Washington Music Center

Maryland, Virginia, and Washington DC's legendary music shop. Family-owned and operated since 1958. Buy gear the way it was meant to be bought, from a store that's been there through it all and has the vibe to prove it. We're staffed with musicians and industry experts, people that live and breathe music gear. Our mission is to help you find the right gear for your project, that thing that will bring you the most joy out of what you do. We're an authorized dealer for almost every brand, we stock items the other stores don't, so you can try before you buy. Stop by our Wheaton, MD showroom and see for yourself.

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