XM-S400D

The Sony XM-S400D is an ultra-compact 4-channel Class-D amplifier designed to dramatically improve factory or aftermarket audio systems without taking up much installation space. Delivering clean and efficient power in a chassis small enough to fit behind dashboards, under seats, motorcycles, UTVs, boats, and tight OEM locations, the XM-S400D is ideal for stealth installations and factory radio upgrades. With high- and low-pass crossovers, speaker-level inputs with signal sensing turn-on, and Sony’s efficient Class-D circuitry, this amplifier delivers powerful, clear sound while maintaining low heat and current draw.

Features & Highlights

• Ultra-compact 4-channel Class-D amplifier
• Efficient low-heat digital amplifier design
• Compact chassis fits under seats, behind dashes, and tight spaces
• Speaker-level inputs with signal sensing auto turn-on
• RCA low-level input compatibility
• Front high-pass filter and rear low-pass filter
• 2-channel or 4-channel input mode selectable
• MOSFET power supply design
• Quick-connect power and speaker terminals
• Removable mounting tabs for flexible installation
• Designed for factory and aftermarket radio integration
• Ideal for cars, motorcycles, UTVs, boats, and powersports applications

Specifications