Upgrading TWELVE stock BMW M3 speakers with Audison Hertz

There was a lot of room for improvement in Spencer Berke's stock E90 BMW M3 sound system. We decided to go with 12 direct fit Audison Prima speakers (including 2 under seat subs), a Bit DMI, and a Prima AP8.9 aplifier. The AP8.9 bit amplifier was designed by Audison R&D Department to achieve maximum sound quality in OEM Integration applications. The powerful management software proves the ability to acquire the bit Drive presets which the Audison team fine-tuned specifically for your car. The Audison Bit DMI is a direct fit digital interface for MOST systems, providing the ability to connect the Audison bit processors and the Audison amplifiers, equipped with digital input, to OEM multimedia systems in cars featuring the MOST technology based on optical fibre. Thanks to the digital connection, the signal can be transmitted without loss of quality, keeping the audio controls built in the OEM head unit – such as volume, balance and tone controls- as well as the hands-free kit, navigation system and parking sensors alerts unaltered. If you're interested in a high quality Audison Direct fit upgrade like this one be sure to give us a call for a free quote. We can upgrade any make & model with nearly any brand you have in mind. Find us on Instagram & Facebook for daily shop content: @NewportAutoSound Contact us or drop by during our business hours! We are located at: 1143 Newport Blvd, Costa Mesa, CA www.newportautosound.com