QSC GX3
Power Amplifier
Power levels matched to the most popular speakers. Inputs: XLR, 1/4″ TRS and phono. Outputs: Speakon® combo and binding posts.
FEATURES
- Power levels matched to the most popular speakers used by entertainers
- Optimized for maximum real-world headroom into 4- and 8-ohm speaker systems
- Inputs: XLR, 1/4-inch TRS and phono input connectors for compatibility with any source
- Outputs: Speakon® combo accepts 1/4-inch (TS) plugs or Speakon 2- and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems
- Minimum depth chassis (10.1-inch / 257 mm) fits in compact, inexpensive effects racks
- Lightweight – GX3 and GX5 less than 26 lb (12.5 kg). GX7 only 15.5 lb (7 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
* 230V 16.5 lb (7.5 kg)
SPECIFICATIONS
| Category | GX3 |
|---|---|
| Output Power per Channel | 8Ω: 300 W4Ω: 425 W |
| Distortion (1 kHz, 1 dB below rated power) | 8Ω: < 0.02%4Ω: < 0.05% |
| Signal to Noise Ratio (20 Hz–20 kHz) | 100 dB |
| Input Sensitivity | 1.2 V rms |
| Voltage Gain | 32.2 dB |
| Output Circuitry | Class B |
| Power Requirements (1/8 power, pink noise at 4Ω, 120V) | 6.3 A |
| Frequency Response | 20 Hz – 20 kHz, +0, -1 dB |
| Dynamic Headroom (4Ω) | 2 dB |
| Input Impedance | > 20 kΩ (balanced) |
| Maximum Input Level | +24 dBu (16 V rms) |
| Input Connectors | 3-pin XLR, 1/4″ TRS (balanced, parallel), Phono (unbalanced) |
| Output Connectors | Speakon®, 1/4″, Binding posts |
| Amplifier & Load Protection | Short circuit, open circuit, thermal, RF, DC fault |
| Front Panel Controls/Indicators | Gain (21 detents), CLIP LED (red), SIGNAL LED (green), POWER LED (blue) |
| Rear Panel Controls | Full Range / Crossover switch (100 Hz LP/HP) |
| Dimensions (H × W × D) | 89 × 483 × 257 mm3.5 × 19 × 10.1 in |
| Carton Dimensions | 610 × 380 × 153 mm24 × 15 × 6 in |
| Net Weight | 12.1 kg / 27 lb |
| Shipping Weight | 13.2 kg / 29.1 lb |
| Agency Approvals | UL, CE, RoHS/WEEE Compliant |
AC Current & Heat Output – 120V
| Operating Condition | AC Amps | BTU/hour |
|---|---|---|
| Idle | 0.2 | 44 |
| 8Ω stereo (1/8 power) | 4.1 | 904 |
| 8Ω stereo (1/3 power) | 6.1 | 1160 |
| 8Ω stereo (full power) | 9.75 | 1109 |
| 4Ω stereo (1/8 power) | 6.3 | 1515 |
| 4Ω stereo (1/3 power) | 9.4 | 2105 |
| 4Ω stereo (full power) | 15.0 | 2297 |
Additional information
Additional information
| Brand | |
|---|---|
| Series | |
| Specifications | # |
| User Manual | # |
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