QSC Audio GXD4 Professional Power Amp - 2 x 400W at 8 Ohms
FREE UK Delivery
Earn 569 Loyalty Points
Want to Click and Collect or try items at our Guildford Store?
The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.
The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.
Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose click and collect as your delivery option online or, during store opening hours, call our sales team at 01483 456777 to place a 10% deposit.
If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.
Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.
If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.
Please be aware that, unless you have paid a deposit to reserve the item, it will continue to be free, both online and in-store, for another customer to buy. Therefore we would advise you to place a 10% deposit by either using the on-line click and collect service or calling us 01483 456777.
SKU: GXD4
You might also need
Product Description
Register this product within 30 days of purchase, and you can extend its standard 3 Year Warranty to 6 Years! Click here to register.
GXD Series amplifiers are ideal for all kinds of music and production applications when you need great performance and the convenience of integral signal processing and the GXD4 is a great, reliable unit at a very affordable price. The hallmarks of the QSC brand – professional audio quality, engineering and manufacturing focused on long-term reliability - are all intrinsic to the GXD. With contemporary styling, multiple routing options, a light weight construction, digital signal processing and advanced protection circuitry, and the GXD Series clearly represents real value – something everyone can use.
The GXD series is optimized for use with 8 and 4 ohm loudspeaker loads. GXD amplifiers deliver just the right amount of power to the most popular speakers used by entertainers and production professionals.
The GXD amplifiers are unlike other amps in this category that provide little more than a front panel screen to control the same functions that have been under rear-panel, DIP switch control for decades. The DSP section includes High and Low-Pass filters (24dB LR), 4-band parametric equalizer, signal alignment delay, and RMS/Peak speaker protection limiting. Twenty presets for selected typical systems are provided as generic “starting points” are included.
The most common cause of loudspeaker failure is amplifier clipping. The digital limiter used in the GXD amplifiers is set to prevent the amplifier from being driven into clipping while delivering the maximum usable output. In addition to amplifier limiting it also provides smart speaker protection by simply setting the loudspeaker’s continuous power and impedance (4 and 8), and selecting whether Mild, Medium or Aggressive protection is desired.
Key Features
- Extensive and powerful loudspeaker processing built in. Includes high and low-pass filters, 4-band parameteric EQ, limiting, and delay.
- Large LCD display simplifies amplifier setup and indicates amp status. Just right for
- Inputs: Parallel XLR and 1/4” 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.
Specifications
- 8 dynamic, both channels driven 600 watts
- 4 dynamic, both channels driven 800 watts
- 8 continuous, both channels driven 400 watts
- 4 continuous, both channels driven 600 watts
- Distortion (typical) < 1% THD
- 1 kHz at full rated power
- Signal to Noise (A weighted, 20 Hz–20 kHz) 100 dB
- Input Sensitivity 1.2 Vrms, 3.9 Vrms
- Maximum Voltage Gain 33.5 dB
- Output Circuitry Class D
- - 100 V AC 3.4 A
- - 120 V AC 2.9 A
- - 230 V AC 1.6 A
- Frequency Response (20 Hz–20 kHz) +0.7 dB, -0.8 dB
- Dynamic Headroom (4) 1.25 dB
- Damping Factor (8) 100
- Input Impedance 20 k (balanced), 10 k (unbalanced)
- Maximum Input Level +23.5 dBu
- Input Connectors (each channel) 3-pin XLR/F / 1/4" 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.
- Dimensions (HWD) 3.5" (2 RU) × 19" × 10.2" (89 mm × 483 mm × 259 mm)
- Weight (Net) 11.3 lb (5.1 kg)
- Weight - Shipping 15.4 lb (7.0 kg)
- Agency Approvals UL, CE, RoHS/WEEE compliant
- Carton and Contents Power cable and quick start guide