QSC GX 3, Power Amplifier, Power: 2x 425 W / 4 Ohm, 2x 350 W / 8 Ohm, Inputs channel 1 and 2: 2x XLR balanced, 2x RCA and 2x 6.3 mm stereo jacks, Outputs: Speaker Twist combo jacks to 6.35 mm jack, 2 x screw terminals, 2 Stepped gain controls for precise adjustment, Frequency range: 20 - 20,000 Hz, Signal / noise ratio: 100 dB, Integrated switchable crossover, Guard rail technology, Protects against overheating and overloading without disconnecting, Protective circuits and thermal fuses, Detachable power cable, Very low installation depth and low weight, Dimensions (W x H x D) 483 x 89 x 257 mm, Format: 19"" / 2 U, Weight: 12.1 kg