LD Systems XS-400 Power Amplifier 2 x 200W @ 4 Ohms

The LD Systems XS‐400 Power Amplifier delivers impressive performance in an ultra‐compact 1U rack format. With 200 W per channel at 4 Ω and up to 400 W in 8 Ω bridged mode, this Class D amplifier provides high power output with minimal heat generation and energy loss. Designed for professional applications where space and portability matter, it weighs just 3.4 kg, making it ideal for mobile setups or fixed installations.

Equipped with comprehensive protection circuits, the XS‐400 safeguards against short circuits, DC faults, overheating, and overloading. A built‐in soft‐start delay ensures smooth and reliable power‐up. Connectivity is versatile, with XLR, RCA, and jack inputs, as well as Speakon‐compatible sockets and screw terminal outputs. Rear‐panel switches allow for easy selection of operation modes, gain adjustment, limiter activation, and ground‐lift control to eliminate hum.

LED indicators on the front panel display power, signal, clipping, protection, and operating status at a glance. Combining clarity, precision, and high dynamic range, the XS‐400 delivers clean, transparent sound that suits both live and installed sound systems.

Experience powerful, compact amplification with the LD Systems XS‐400 Power Amplifier.

Features

• Class D power amplifier with 2 × 200 W output at 4 Ω
• Delivers up to 400 W in 8 Ω bridged mode for high‐performance operation
• Wide 20 Hz – 20 kHz frequency range for clear, detailed sound
• Compact 1U rack design and lightweight 3.4 kg build for easy portability
• Comprehensive protection against short‐circuit, DC, thermal, and overload conditions
• XLR, RCA, and jack inputs with Speakon‐compatible and screw terminal outputs
• Selectable operation modes, gain settings, limiter, and ground‐lift functionality
• LED indicators for power, signal, clip, protection, and mode of operation
• Transparent sound with high dynamics and impulse fidelity