SounDigital XP 400.4
At the pinnacle of performance and innovation, the XP 400.4 represents an impressive evolution in automotive audio. Enhanced by artificial intelligence and built with state-of-the-art technology, this 4-channel amplifier embodies SounDigital’s core DNA of innovation, excellence, and precision.
Key Features
- AI-Enhanced Technology: Advanced artificial intelligence optimization for superior sound processing
- Compact Design: Ultra-compact form factor at just 4.69 x 4.44 x 2.0 inches for versatile installation
- Advanced Crossover Controls: Adjustable HPF and LPF from 45Hz to 850Hz for precise tuning
- Bridge Capability: Convert to 2-channel operation for increased power output
- Wide Frequency Response: 5Hz to 36kHz range for full-spectrum audio reproduction
- Low Distortion: 0.1% THD+N at 10% rated power for crystal-clear sound
Technical Specifications
- Power @ 4 Ohm: 4 x 66W RMS
- Power @ 2 Ohm: 4 x 100W RMS
- Bridge Power @ 8 Ohm: 2 x 132W RMS
- Bridge Power @ 4 Ohm: 2 x 200W RMS
- Operating Voltage: 9V – 16V
- Current Draw (Max): 34A
- SNR: 96dB
- Frequency Response: 5Hz – 36kHz (-3dB)
- Dimensions: 4.69 x 4.44 x 2.0 in
- Recommended Fuse: 20A
Perfect for audiophiles and casual listeners alike who demand exceptional sound quality and versatile installation options.
















