Networked Audio devices essentially add an aftermarket preamp output section to your BMW iDrive in-dash receiver, using the pure digital signals from the iDrive infotainment network - rather than processed speaker-level signals from the premium amplifier. Installing a Zen Audio networked device in your compatible BMW eliminates all OEM sound processing and upgrades the quality of the audio signal - making your aftermarket audio upgrade perform as it should.

Network Preamps use your aftermarket amplifier, while Networked Amplifiers include the preamp and a multichannel amp in one unit. Click here to learn more about Networked Audio.

While most current BMWs use Ethernet, for many years BMW used MOST 25 optical networks. 

Zen Audio makes network preamps and network amplifiers compatible with MOST 25-equipped BMWs. 

BMW MOST 25 preamps: Mobridge DA1, DA-G2 Standard, DA-G2 Pro

BMW MOST 25 Amplifier: Zen Audio Zen POWER9 M25

Click here for more information on upgrading BMW sound.