sundown audio SDX-400.1 (SDX series) Amplifier

Moderate power, tiny size, but at the top-end of Full-Range Class-D fidelity. The controls will have a removable cover that bolts down on top of them. The overall case is a big chunk of cast aluminum to keep temperatures in check!

Features

• Digital Class-D Mono Block Amplifier
• Dual MOS-FET PWM Power Supply
• 1 Ohm Stable Load
• 12 dB/Octave - Variable Low Pass Filter
• DC Auto sense feature
• 0 to 12dB - Variable Bass Boost
• 4 Way Protection Circuit (Thermal, Voltage Speaker short and DC Offset)
• Wired Remote Control

Specifications

• Mono Block Class-D Amplifier
• 1 x 400W at 1 Ohm
• 1 x 300W at 2 Ohm
• 1 x 175W at 4 Ohm
• Recommended Fuse Rating: 40A
• LoW Pass Filter (-12dB/8) Variable: 50hz-250hz
• Input Sensitivity: 6V Max
• S/N: >90dB
• Cast Aluminum Heat Sync
• Water Resistant
• Highpass / Lowpass / Bandpass Filter
• Gain Adjustment 
• Suitable for vehicles with start / stop function
• Dimensions in mm (LxWxH): 147 x 102 x 54 mm