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LD Systems DJ 800 - PA Power Amplifier 2 x 400 W 4 Ohms The LD Systems DJ 800 is a robust Class AB power amplifier delivering 400W per channel at 4 ohms. Perfectly suited for mobile DJs and professional PA installations, it combines compact design, advanced protection features, and high-quality audio performance for reliable sound reinforcement. Key Features Power output: 2 x 400W at 4 ohms, 2 x 240W at 8 ohms, 800W bridged Class AB amplifier design for dependable and consistent performance Compact and lightweight: 10.1 kg, ideal for mobile and installed use Extensive protection circuitry: DC, thermal overload, over-current, short circuit, and soft start Power-on delay and low-noise fan cooling with front panel ventilation Inputs: XLR and 6.3 mm stereo TRS connectors Outputs: Speakon-compatible sockets and heavy-duty screw terminals Ground lift switch to eliminate ground loop hum Front panel LEDs indicate power, clip, and protection status Full frequency response: 20 Hz to 20 kHz with excellent dynamics and impulse fidelity Specifications Product number: LDDJ800 Type: 2-channel power amplifier Rated output power (1 kHz @ 4 Ohms): 2 x 400W Rated output power (1 kHz @ 8 Ohms): 2 x 240W Rated output power (1 kHz @ 8 Ohms, bridged): 800W Output circuitry: Class A/B Frequency response: 20 - 20,000 Hz Total Harmonic Distortion (THD): 0.05% Gain: 32 dB Input sensitivity: 0.85 V Protection circuits: DC, thermal overload, over-current, short circuit, soft start Controls: Ground lift, mode, On/Off, volume Indicators: Power, clip, protect (protection circuit engaged) Line inputs: 2 (XLR, 6.3 mm jack) Loudspeaker outputs: 2 (terminal posts, Speakon compatible) Cooling: Fan Operating voltage: 230 V AC Dimensions (W x H x D): 483 mm x 88 mm x 298 mm Weight: 10.1 kg