The new M4+v3 DSP amplifier can be considered as the little brother of the M6 model. The only difference: The M4+ is coming with four amplified speakers, but still offering more power per channel than the larger M6. Both models also share the very compact dimensions, which could be achieved thanks to its cleverly designed 4-way cladded circuit-board. The newly engineered Class D technology is particularly immune to EMC interference, which is virtually indispensable in today‘s electronic-packed vehicles.


A key-premise to enjoy interference-free music while driving. With four bridged power outputs, each one providing 135 watts RMS per channel (2  Ω), the M4+v3 offers remarkable output power with a total of 540 watts RMS. With the included wiring harness, ISO plug and optional Plug + Play harnesses, the M4 + is perfect for tuning original 4-channel sound systems. Four additional DSP-tunable preamp outputs allow the integration of further amplifiers. Finally, the new M4+ amp also provides a high-level input with error protection system for trouble-free connection to OEM factory radios.


• Intelligent High Level Input (Error Protection System)

• Start-Stop ready, Auto Turn-On

• Burr-Brown converters (PCM3168A) and Analog Devices DSP (ADAU1452)

• Dual 32bit, 330 MHz DSP technology, controllable via new V3 PC software or V3 App

• Soft-Clipping (power attenuation) in 2 Ohm operation

• Signal-to-noise Ratio ≥90dB

• Frequency Response 15 Hz – 22 kHz (-3dB)

• THD ≤0,1% (1 kHz, 4Ω, 90% Power)

• Separately controllable input sensitivity (Channel 1-6, AUX), Clipping LEDs

• Plug+Play with vehicle-specific cable sets

• External Bluetooth® USB-Dongles BTS, BTS-HD & BTA2 for Audio Streaming & App Control (optional)

• Digital remote control DRC1 with OLED display for controlling various DSP functions (optional)


4 x 100/135 Watts RMS @ 4/2  Ω or

2 x 270 Watts RMS @ 4  Ω bridged

6 x High Level Input

6 x RCA Low Level Input*

2 x AUX/RCA Input, 1 x Optical Input/Stereo

4 x Loudspeaker Output amplified

4 x Pre-Amplifier Output/RCA (configurable via DSP)

Dimensions: 220 x 44 x 150 mm

* only with optional MPK-RCA6/MPK-RCA6-PP cable set

EUR 599,00

Manufacturer's suggested retail price, changes and mistakes reserved.

All trademarks, trade names or brands are the property of their respective owners.

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