SounDigital XP 800.4

The SounDigital XP 800.4 combines modern Class D technology with an extremely compact design and high efficiency. As part of the latest XP series, the amplifier was developed for demanding car audio applications that require a powerful and space-saving solution. Thanks to its wide frequency range, adjustable high- and low-pass filters, and high-level and RCA inputs, the XP 800.4 is suitable for high-quality front systems as well as for driving rear speakers or smaller subwoofers in bridge mode.

The efficient circuitry ensures low heat generation and low power consumption, while the high damping factor enables precise control of the connected speakers. Thanks to its compact dimensions, the amplifier can be discreetly installed almost anywhere in the vehicle—ideal for modern vehicle designs with limited installation space.

Technical Specifications

• 4-Channel Class-D Amplifier
• RMS power at 4 Ω: 4 × 132 watts
• RMS power at 2 Ω: 4 × 200 watts
• RMS power (bridged at 4 Ω): 2 × 400 watts
• Not designed for 2 Ω bridge mode
• Frequency response: 5 Hz – 34,000 Hz (-3 dB)
• Variable high-pass filter (HPF): 45–850 Hz
• Variable low-pass filter (LPF): 45–850 Hz
• Filter slope: 12 dB/octave
• Bass Boost: Not available
• Signal-to-noise ratio (S/N): 91 dB
• Damping factor: 200 (@100 Hz)
• Overall efficiency: 80%
• RCA input sensitivity: 0.2 – 2 volts
• High-level input sensitivity: 1.5 – 15 volts
• Operating voltage: 9–16 volts
• Music current draw: 35 A
• Maximum current draw: 70 A
• Recommended fuse: 40 A
• Recommended minimum battery capacity: 60 Ah
• Power cable connection: 10 mm² (7 AWG)
• Speaker terminals: 2 × 1.5 mm² (15 AWG)
• Remote connection: 1.5 mm² (15 AWG)
• Dimensions (L × W × H): 145.3 × 135.8 × 50.7 mm
• Weight: approx. 0.93 kg