Description
- Digital Class-D Mono Block Amplifier
- Dual MOS-FET PWM Power Supply
- 1 Ohm Stable Load
- 12 dB/Octave Variable Low Pass Filter
- 4 Way Protection Circuit (Thermal, Voltage, Speaker Short, DC Offset)
Sundown Audio Monoblock Marine & Powersports Amplifier 400W Class D (SDX Series) w/ Bass Knob
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!
This listing includes:
- (1) Sundown Audio Marine Grade Monoblock Amplifier SDX-400.1
- (1) Sundown Audio Remote Bass Control Knob
- Includes Mounting Hardware and Manual
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
Dimensions (L x W x H): 5.82 x 3.42 x 1.73 (148 x 87 x 44 mm)
Note: Unscrew the badge using an Allen key to access audio settings.

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