Coral Springs, Florida - April 23, 2018 -  

NAV-TV Corp., announces the ZEN-M amplifier interface for select Mercedes Benz vehicles utilizing MOST®150. The ZEN-M allows the seamless addition of aftermarket amplifiers into compatible vehicles, delivering audiophile-quality sound without compromising the vehicle’s factory fit, finish or features. ZEN-M is the second MOST®150 digital preamp solution from NAV-TV®,expanding compatibility to now include select Audi, Bentley, Mercedes Benz, Porsche and VW models.

The ZEN-M produces a completely flat audio output without any factory time delay or equalization, eliminating the need for summing devices, an audio correction DSP or the removal of the factory audio compensation microphones. Installation of the interface requires no modification to the vehicle and is compatible with both amplified and non amplified factory systems[1]. Volume, Fade[3], Balance and Bass/Treble tone controls are retained through the factory radio and echo cancelation for the factory Bluetooth hands-free system is supported.

Utilizing a 128 bit floating point DSP and 192 kHz 32 bit DAC, the ZEN-M produces a 12 channel analog output with a S/N Ratio of 123dB. For vehicles with video playback capability, the ZEN-M supports 7.1 and 5.1 audio[2]. The unit provides a 500mA output for controlling aftermarket devices and, additionally, retains the factory equalizer.

For use with 3rd party digital sound processors[3], the ZEN-M includes a variable TOSlink digital output which may be used simultaneously with the analog outputs, or by itself. The variable digital output allows for the system volume to be controlled via the factory radio and steering wheel controls without the need to access any 3rd party controller.

The ZEN-M currently supports the following Mercedes Benz models with NTG5, NTG5*1, NTG5*2 and NTG5*5 infotainment platforms:

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