The QSC GX3 425 Watt 4-Ohm Power Amplifierd is designed to provide power, portability and professional sound quality at an affordable price. The GX3 features 300 watts of power at 8 ohms (both channels driven) in a design that's easy to instal and delivers flexible features. The rear panel features balanced XLR and 1/4" phone inputs, as well as unbalanced RCA phono inputs for complete compatibility with professional and consumer audio gear.
The outputs feature speaker binding posts and Speakon® connections. Detented gain controls provide precise level settings. QSC's GuardRail protection delivers full peak power while preventing detrimental overloads due to excessive clipping or overheating. In addition, a built-in 180Hz crossover splits low and mid frequency signal between the left and right channel. This is ideal for driving sub-woofers. The GX3 is a feature packed, lightweight amplifier that's suitable for mid-size venue installation, musicians, mobile DJs, etc.
Features
XLR, 1/4" Phone and RCA Inputs
The rear panel features balanced XLR and 1/4" phone inputs, as well as unbalanced RCA phono inputs for complete compatibility with professional and consumer audio gear.
Flexible Outputs
The outputs feature speaker binding posts and Speakon® connections. Detented gain controls provide precise level settings.
QSC GuardRail Protection
QSC's GuardRail protection delivers full peak power while preventing detrimental overloads due to excessive clipping or overheating.
Built-In Crossover
A built-in 180Hz crossover splits low and mid frequency signal between the left and right channel.
Specifications
| Power Rating | 8 ohms / 1 kHz (both channels driven): 300W 8 ohms / 1 kHz (single channels driven): 350W 4 ohms / 1 kHz (both channels driven): 425W 4 ohms / 1 kHz (single channels driven): 500W |
| Damping Factor | Not Specified By Manufacturer |
| Input Sensitivity | 1.2 Vrms |
| Input Impedance | Greater than 20k (balanced) |
| Gain | 32.2dB |
| Frequency Response | 20Hz - 20kHz, +0, -1 dB |
| Signal-to-Noise Ratio | 100dB |
| Total Harmonic Distortion (THD) | 8 ohms: less than 0.05% 4 ohms: less than 0.1% |
| Input Connections | 3-pin XLR and 1/4" TRS, balanced, parallel Phono, unbalanced |
| Output Connectors | Speakon, 1/4", Binding Posts |
| Controls Front Panel | Gain controls, 21 detents Red Clip LEDs, proportional, 0.1% THD threshold Green Signal LEDs, threshold -35 dB Blue Power LED, AC on |
| Controls (Rear) | Full Range / Crossover switch 100 Hz, 3rd order LP (sub), 2nd order HP (top) |
| Indicators | Red Clip LEDs, proportional, 0.1% THD threshold Green Signal LEDs, threshold -35 dB Blue Power LED, AC on |
| Cooling | Not Specified By Manufacturer |
| Power Consumption | 0.2 AC Amps, 44 per hour idle UL, COE, RoHS/WEEE Compliant |
| Power Requirements | 1/8 power, pink noise at 4 ohms, 120V 6.3A |
| Dimensions (WxHxD) | 19 x 3.5 10.1" (483 x 89 x 257mm) |
| Weight | 26 lbs (12 kg) |
| Specialities | Subwoofer/Satellite crossover built-in |
