Digital Marts

Marts Digital MDS400X4 | 4 Channel Class D Amplifier 400W RMS at 2 Ohms | Compact Size Low Heat Output | Adjustable Filters for Mids Highs Bass | Clean Full Range Power for Car Audio Systems

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Marts Digital MDS400X4 | 4 Channel Class D Amplifier 400W RMS at 2 Ohms | Compact Size Low Heat Output | Adjustable Filters for Mids Highs Bass | Clean Full Range Power for Car Audio Systems

Improved Sound Quality

Marts Digital amplifiers are engineered to deliver exceptional audio clarity, rich definition, and balanced depth. Every note and beat is amplified with precision for a premium listening experience that brings your music to life.

Increased Power & Performance

With advanced amplifier technology, Marts Digital amplifiers provide strong, efficient power output to your speakers. Enjoy louder volumes, deeper bass, and consistent performance without unwanted distortion — perfect for car audio or custom setups.

Reduced Distortion & Noise

Built with smart circuitry and noise-filtering design, Marts Digital amplifiers ensure clean and accurate sound reproduction. Experience crystal-clear playback even at high volumes, with reduced interference and smoother frequency response.

Customization & Control

Every Marts Digital amplifier gives you full control over your sound. Fine-tune gain, crossover, and equalization settings to match your preferred audio style — from crisp highs to powerful lows — for a setup that’s uniquely yours.

Minimum Output Impedance	2 Ohm
Number of Channels	04
Output Power @14.4VDC	120W RMS (2 OHMS) | 70W RMS (4 OHMS)
Input Sensitivity (Level 100%)	400mV – 7V
Signal- to-noise Ratio	>90dB
Freq. Response (Full Range)	10Hz – 40kHz (-3dB)
High Pass Filter (HPF)	20Hz – 300Hz (-3dB)
Low Pass Filter (LPF)	20Hz – 500Hz (-3dB)

Efficiency	91%
Input Impedance	10K Ohms
Protection System	Short-Circuit to Output, Short on output compared to GND, Low impedance at output, low/high supply voltage and Thermal protection
Supply Voltage Range	9VDC–16VDC
Idle Consumption	0.8A
Musical Consumption @14.4VDC	35A
Rated Power Consumption	40A
Dimensions & Weight	110×49x222 mm(3.3"x1.93"x6.66") — 1.12 kg