ZEN Audio


Zen 25 M.O.S.T. OEM Audio Output Interface for BMW Factory Amplified Systems

Zen 25 M.O.S.T. OEM Audio Output Interface for BMW Factory Amplified Systems

M.O.S.T. Audio Output Interface

Zen 25

The ZEN-AUDIO ZEN-25 processor seamlessly converts 2004-2019 BMW M.O.S.T. 25 factory amplified infotainment systems to 12-channel analog RCA and TOSLink output.


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Product Information

Adding aftermarket amplifiers to the factory amplified BMW M.O.S.T. system has never been so simple. This module integrates directly with the M.O.S.T. bus to retain volume control, full fade (analog only), balance, treble, bass control, factory 7-band EQ & phone calls with no external speaker (true OEM integration). 

The interface comes standard with a user interface that allows 2 different time alignments selectable through the factory Logic 7 button, full independent control of phone and gong volumes, the ability to reassign audio, warning chimes or phone calls to any channel, and simultaneous use of the digital TOSlink and analog outputs. ZEN-25 includes a single stereo TOSlink output and 12 analog channel outputs, providing 17 volt peak-to-peak with a signal to noise ratio of 114dB. 


  • Compatible OS: Windows 7, 8, 10 (64bit), MAC OS 10.11 & up, Linux with current CDC-ECM driver
  • Input Digital Input
  • M.O.S.T. 25 Fiber Optic Output
  • Digital Output: TOSlink
  • Supported Digital Output: 24bit/44.1kHz
  • Analog Outputs: 12 Channels (RCA)
  • Output Voltage Peak-to-Peak: 17V
  • Output Voltage RMS: 6V
  • Analog Output Type: Single-Ended
  • S/N Ratio (Analog): 114dB
  • Frequency Response (Analog): 18Hz - 22.05kHz
  • THD+N@ -1dBFS: -94dB
  • DAC: 44.1kHz 32bit
  • DSP: 32bit Floating Point
  • Delay (Time Alignment): 2 time Alignments selected by Logic 7: on or o
  • Power Supply Current Consumption Standby:
  • <1 mA Current Consumption Operational:
  • 350 mA MAX Operational Voltage:
  • 7V -20V DC Amp Turn-On Output:
  • Automatic Amp Turn-On Voltage:
  • V-batt Amp Turn-On Current Limit: 500mA 
  • Dimensions: 4”x 5”x 1 3/8”
  • Weight: 10 oz
  • Country of Origin: USA


2004-2019 CCC, CIC, NBT or NBT EVO and M.O.S.T. Fiber Optic Amplifier

  • BMW 1 Series 
  • BMW 2 Series 
  • BMW 3 Series 
  • BMW 4 Series 
  • BMW 5 Series 
  • BMW 6 Series 
  • BMW 7 Series 
  • BMW X1
  • BMW X3
  • BMW X4
  • BMW X5
  • BMW X6
  • BMW Z4
  • BMW i3
  • BMW i8

What's Included

  • ZEN-25 Interface
  • Power Harness
  • MOST Fiber
  • RCA Harness

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