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 GX3 GX5 GX7 Output power per channel 8Ω continous, both channels driven 300 W 500 W 725 W 4Ω continous, both channels driven 425 W 700 W 1000 W Distortion (1 dB below rated power, 1 kHz) 8 ohms: less than 0.02%4 ohms: less than 0.05% Signal to Noise (20 Hz - 20 kHz) 100 dB Input Sensitivity 1.2 V rms Voltage Gain 32.2 dB 34.4 dB 36.1 dB Output Circuitry Class B 2-tier Class H 2-tier Class H Power Requirements (1/8 power, pink noise at 4 ohms, 120V) 6.3 A 6 A 10.1 A Frequency Response 20 Hz–20 kHz, +0, -1 dB Dynamic Headroom (4 ohms) 2 dB Input Impedance Greater than 20 kΩ (balanced) Maximum Input Level +24 dBu (16 V rms) Input Connectors (each channel) 3-pin XLR and 1/4-inch TRS, balanced, parallelPhono, unbalanced Output Connectors (each channel) Speakon®, 1/4-inch, Binding posts Amplifier and Load Protection Short circuit, open circuit, thermal, RF protectionLoad protected against DC faults Front Panel Controls and Indicators Gain controls, 21 detentsRed CLIP LEDs, proportional, 0.1% THD thresholdGreen SIGNAL LEDs, threshold 35 dB below clippingBlue POWER LED, AC on Rear Panel Controls Full Range / Crossover switch100 Hz, 3rd order LP (sub), 2nd order HP (top) Product Dimensions (H×W×D) 89 × 483 × 257 mm3.5 × 19 × 10.1 in Carton Dimensions (H×W×D) 610 × 380 × 153 mm24 × 15 × 6 in Net Weight 12.1 kg / 27 lb 12.6 kg / 28 lb 120V model: 7 kg / 15.5 lb230V model: 7.5 kg / 16.5 lb Shipping Weight 13.2 kg / 29.1 lb 14.5 kg / 32 lb 120V model: 9.3 kg / 20.5 lb230V model: 9.75 kg / 21.5 lb Agency Approvals UL, CE, RoHS/WEEE Compliant AC Current and Heating, 120 VAC(multiply current by 0.5 for 230 VAC) GX3 GX5 GX7 Operating Condition AC amps BTU/hour AC amps BTU/hour AC amps BTU/hour Idle 0.2 44 0.3 60 0.6 82 8 + 8 ohms, 1/8 power 1 4.1 904 3.3 734 6.7 1169 8 + 8 ohms, 1/3 power 2 6.1 1160 8.5 1456 13.3 1807 8 + 8 ohms, full power 3 9.75 1109 16.2 1891 26.5 2167 4 + 4 ohms, 1/8 power 1 6.3 1515 5.8 1160 10.1 1963 4 + 4 ohms, 1/3 power 2 9.4 2105 11.2 2162 18.5 2612 4 + 4 ohms, full power 3 15.0 2297 24.5 3754 40 4478