LD Systems XS 400

The XS400 is an extremely compact, dependable Class D power amplifier with an output of 200W per channel at 4 ohms 400W in 8-ohm bridged mode, and a wide transmission range of 20Hz – 20kHz. Our Class D power amplifier technology makes it possible to pack high performance into a minimum of space without generating unnecessary loss energy. The XS400, at 1U and a weight of 3.4kg, is conceived for all professional applications in which ease of transport or space is important, whether mobile or in permanent installations.

The XS400 has all protection circuits against short-circuiting, DC, overheating, and overloading and has a soft-start delay. The amplifier features XLR, RCA and jack input connectors, with Speakon-compatible sockets and screw terminals as outputs. On the rear panel, it is possible to select the mode of operation and gain and activate the limiter and ground-lift function. LEDs on the front indicate power, signal, clipping, triggering of the protection circuit, and the mode of operation. The transparent sound of the XS400 stands out with high dynamics and impulse fidelity.

• Product type Power Amplifiers
• Weight 3,8 kg
• Height 44 mm
• Width 482 mm
• Depth 244 mm
• Frequency response 20 - 20000 Hz
• Type PA Power Amplifiers
• Controls Gain, ground lift, limiter, mode, On / Off, volume
• Operating voltage 115 V AC / 230 V AC (switchable)
• Indicators clip, mode, Power, Protect (protection circuit engaged), Signal
• THD < 0.1 %
• Line input connectors 6.3 mm jack, RCA
• Protection circuits DC, over-current, short circuit, soft start, thermal overload
• Input sensitivity 0.68 V / 1.4 V / 1.2 V (not passed) V
• Line inputs 2
• Cooling low-noise fan
• Loudspeaker outputs 2
• Speaker output connections Speakon compatible, Terminal posts
• Rated ouput power (1kHz @ 4 Ohms) 2 x 200 W
• Rated ouput power (1kHz @ 8 Ohms) 2 x 100 W
• Output circuitry Class D
• Rated ouput power (1kHz @ 8 Ohms, bridged) 400 W
• Gain 32 dB / 26 dB / 28 dB dB
• Power consumption @ full load 470 W