Open Box QSC GXD 4 Professional Power Amplifier Level 1


Description



Features
- High peak output power with up to 1600 watts from the GXD 4 and a whopping 4500 Watts from the GXD 8.
- Power levels matched to the most popular loudspeakers and optimized for maximum real-world headroom into 4 and 8 Ohm 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.
- Large LCD display simplifies amplifier setup and indicates amp status.
- 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' power and impedance.
- Front panel LEDs indicate signal presence, input overload, and amplifier clipping.
Specs
- 8 Ohms dynamic, both channels driven: 600 watts
- 4 Ohms dynamic, both channels driven:: 800 watts
- 8 Ohms continuous, both channels driven: 400 watts
- 4 Ohms continuous, both channels driven: 600 watts
- Distortion (typical)
- 1 kHz at full rated power: < 1% THD:
- Signal to Noise (A weighted, 20 Hz“20 kHz): 100 dB
- Input Sensitivity: 1.2 Vrms
- Maximum Voltage Gain: 33.5 dB
- Output Circuitry: Class D
- Power Requirements: 1/8 power at 4Î
- - 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 Ohms): 1.25 dB
- Damping Factor (8 Ohms): 100
- Input Impedance: 20 kÎ (balanced), 10 k Ohms (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
Featured Articles
Reviews
2.8
5 Reviews
50%
of respondents would recommend this to a friend
- Pro Audio / DJ / Mixing1
- Experienced1
- Lightweight1
Reviewed by 5 customers
Very Disappointed. Not by QSC but by…..
submitteda month ago
byJav
fromMedford, OR
Bought QSC GXD4 Memorial Weekend used but supposedly good condition according to the website (see pics). I plugged it in (I own GXD8 so easy swap) & after powering on, red clip lights/Failure status come on. No good. How this passed to sell to begin with is on Guitar Center.
Not good
submitted9 years ago
byBoss
fromSydney, Australia
We installed this amplifier last may 2015 for our front of the house array speaker. Now it doesn't work anymore it shows Failure, status: Shutdown
Does not last long
submitted9 years ago
byBoss Quintine
fromaustralia
We use this amplifier as a main house speaker. Installed last may 2015. Now it does not work anymore, it shows Failure and status: shutdown
Love QSC
Verified Buyer
submitted9 years ago
byGeorge
fromChicago
I always loved QSC quality and performance. This amps are outstanding. Well built, great interface. They are also small, and not to havy which is always good for a large rack.
I want another one.
Verified Buyer
submitted9 years ago
byGeorge
fromChicago
I like this amps so much I want another one.
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