QSC GXD4 400W 2 Channel DSP Power Amp

The GXD Series GXD4 power amplifier is ideal for portable sound reinforcement applications and installations with demanding DSP requirements and flexibility at a cost-effective price. The high-performance GXD4 provides enormous Class D power in a lightweight and efficient package. The universal switchmode power supply helps reduce the weight, increase efficiency, and ensures rock-solid continued operation even with poor power conditions. The addition of on-board DSP processing with an easy-to-use interface offers powerful tools like Crossover and EQ filters, Delay, and Power Limiting that allow the user to configure the amplifier and maximize the performance of their loudspeakers. The GXD4 is engineered to meet any demanding application and provide excellent power and legendary QSC reliability, in an efficient, lightweight, and flexible package. Features 400W/channel @ 8 ohms, 600W/channel @ 4 ohms, 1600W total peak power Power levels matched to the most popular speakers & optimized for maximum headroom Class D output stage with USP for high performance/efficiency Extensive and powerful DSP including high- and low-pass filters, 4-band parametric EQ, limiting & delay Precision rotary encorders for gain and DSP control Specifications Stereo Mode - Watts Per Channel: 8 Ohm Peak, Both Channels Driven: 600 Watts 4 Ohm Peak, Both Channels Driven: 800 Watts 8 Ohm Continuous, Both Channels Driven: 400 Watts 4 Ohm Continuous, Both Channels Driven: 600 Watts Distortion (typical, 1 kHz at full rated power): < 1% THD Signal-to-Noise Ratio (A-weighted, 20 Hz - 20kHz): 100 dB Input Sensitivity: 1.2 Vrms, 3.9 Vrms Voltage Gain (8 Ohms): 33.5 dB Output Circuitry: Class D Power Requirements - 1/8 Power at 4 Ohms: 100 VAC: 3.4 Amps 120 VAC: 2.9 Amps 230 VAC: 1.6 Amps Frequency Response: 20 Hz - 20 kHz, +0.7 dB,-0.8 dB Dynamic Headroom (4 Ohms): 1.25 dB Damping Factor: 100 Input Impedance: 20 kOhms (balanced) 10 kOhms (unbalanced) Maximum Input Level: +23.5 dBu Input Connectors (each channel): 3-pin XLRF /1/4" TRS, balanced Output Connectors (each channel): NL4 (Channel 1- 1+/-, Channel 2 - 2+/-), binding posts Amplifier and Load Protection: Short circuit Open circuit Thermal RF protection Load protected against DC faults Front Panel Controls and Indicators: 2x Rotary Encoders 3x Operational Buttons (HOME, ENTER, EXIT) 2x Green Signal LEDs, indicates signal presence 2x Red A/D Clip LEDs, indicate input over-drive and/or amplifier current clipping Blue Power LED ring, AC on 2.12" x 1.0", 256 x 128 pixel LCD panel DSP Functions: High Pass Filter, 4th order LR, adjustable Frequency 20 Hz to 4 kHz Low Pass Filter, 4th order LR, adjustable Frequency 60 Hz to 4 kHz 4-band PEQ, with variable Frequency, Gain, and Bandwidth Peak Limiter, with Power, Aggressiveness, and Impedance selection Delay 50 msec max. Dimensions (H x W x D): 3.5" (2U) x 19" x 10.2" (89 x 483 x 259 mm) Weight: 11.3 lbs. (5.1 kg) Agency Approvals: UL, CE, RoHS/WEEE Compliant Carton and Contents: Power cable and quick start guide