AR1-MB-M150: Digital Pre-Amp Interface for Mercedes-Benz vehicles with MOST150

The AR1-MB-M150 digital amplifier replacement interface for Mercedes-Benz is an advanced electronic PRE-AMP designed to seamless replacement of the factory-installed amplifier in select Mercedes-Benz vehicles. It is engineered to integrate with the existing audio system and provide improved sound quality and functionality without the need for extensive modifications or rewiring.

Key features of the AR-MB-M150, Pre-Amp digital interface are:

  1. Compatibility: Tailored to work specifically with Mercedes-Benz NTG5 to NTG5.5 infotainment systems equipped with the MOST150 fiber optics.
  2. Enhanced Audio Quality: The interface is engineered to deliver superior sound quality by leveraging digital signal processing (DSP) and data controlled functions
  3. Plug-and-Play Installation: Designed for straightforward installation, the interface often requires minimal modifications or wire splicing. It typically connects directly to the existing wiring harness making it a very easy install.
  4. Integration with OEM Controls: It allows seamless integration with the vehicle's original controls and head unit, preserving features like volume control, Bluetooth, and other audio settings.
  5. Designed for Aftermarket Upgrades: Optical output and coaxial output provide flat hi bit rate digital signal directly to your amplifier or DSP.
  6. Reliability and Durability: Built to meet high standards of durability and reliability, ensuring long-term performance and stable operation within the vehicle with a 3 year warranty
  7. Compatibility Updates: Some interfaces might come with firmware or software updates that improve compatibility with new technologies or provide additional features over time.

This interface effectively serves as a way to change the factory amplifier, offering significant improvements in sound quality and customization without compromising the original functionality of the Mercedes Benz's audio system. Users can experience an upgraded audio performance tailored to their preferences while retaining the seamless integration and control offered by the vehicle's original entertainment system.


  • Full frequency digital output
  • Retains all OEM sounds (door chimes, turn signals, Bluetooth etc.)
  • Toslink and Coaxial outputs
  • Toslink and Coaxial Inputs
  • 3 Year Warranty
Retail Price

Compatibility Chart for Mercedes-Benz

Model Year
Mercedes-Benz A-Class 2015-2018
Mercedes-Benz B-Class 2015-2018
Mercedes-Benz C-Class 2015-2020
Mercedes-Benz CLA 2015-2019
Mercedes-Benz CLS 2015-2018
Mercedes-Benz E-Class 2016-2020
Mercedes-Benz GLA 2016-2019
Mercedes-Benz GLC 2016-2019
Mercedes-Benz GLE 2016-2019
Mercedes-Benz GLS 2016-2018
Mercedes-Benz S-Class 2014-2020
Mercedes-Benz AMG GTR 2015-2020
Mercedes-Benz AMG GTS 2015-2020
Mercedes-Benz AMG GT 2015-2020
Mercedes-Benz G-Class 2017-2019
Mercedes-Benz SL 2017-2020

Compatibility Chart for AMG

Model Year
AMG GT 2015-2020
AMG GTR 2015-2020
AMG GTS 2015-2020

Compatibility Chart for Aston Martin

Model Year
Aston Martin Vantage 2017-2023
Aston Martin DB11 2017-2023
Aston Martin DBS 2017-2023