Mercedes-Benz has built one of the more recognisable factory audio stories in the industry, largely thanks to its long-running partnership with German high-end audio brand Burmester. Across the C-Class, E-Class, GLC, GLE and S-Class range, the MBUX (Mercedes-Benz User Experience) infotainment platform ties everything together, but what's actually feeding the speakers varies a lot by trim and options list — from a perfectly serviceable standard system through to the flagship Burmester High-End surround sound fitted to top-spec S-Class and EQS models. Given how many Mercedes-Benz vehicles are on Australian roads, we're building out a dedicated upgrade path across the range.
What's actually in a Mercedes-Benz's factory system
Entry and mid-grade Mercedes-Benz models typically run a standard, unbranded factory sound system integrated into MBUX — commonly a modest number of speakers driven by a factory amplifier tuned conservatively for broad appeal rather than outright fidelity. Step up the options list or trim level and you'll commonly find the Burmester Surround Sound System, a mid-tier upgrade offered across C-Class, E-Class, GLC and GLE, adding more speaker channels and a noticeably more refined tune. At the top of the range, S-Class and EQS models are commonly fitted with (or can be optioned into) the Burmester High-End 3D or 4D Surround Sound System, which adds features like additional overhead and headrest-mounted drivers, Dolby Atmos support on some models, and in the 4D variant, transducers built into the front seats that add a physical, felt dimension to bass. It's a genuinely impressive factory offering on paper — but branding and speaker count are only part of the story.
Where the factory system falls short
- Fixed factory tuning, even on Burmester cars — Burmester's involvement covers speaker selection and voicing at the factory, but owners have no access to gain, crossover or time alignment settings; you get the one tune Mercedes-Benz and Burmester signed off on, full stop.
- Standard systems are built for background listening — on non-Burmester cars in particular, the factory amplifier and speaker set are engineered to sound acceptable at moderate volume rather than to reward serious listening, and both run out of clean headroom quickly.
- A fully digital audio path — modern MBUX vehicles route audio digitally with tightly integrated amplification, which makes naive aftermarket installs (ripping out the factory amp or head unit) far more complicated and risky than it used to be.
- Factory speaker locations are compromised — door and dash speaker positions are dictated by styling and NVH requirements, not acoustic performance, so even Burmester-badged driver hardware is working against less-than-ideal mounting and enclosure conditions.
What a genuine Mercedes-Benz upgrade path looks like
The right approach leaves the factory head unit, MBUX screen and Burmester badging (where fitted) completely intact. A plug-and-play DSP amplifier — genuine HELIX or MATCH hardware, such as a HELIX AMPLIFY 206 DSP — wires into the factory harness, tapping the existing speaker-level signal with no cutting or soldering required. See the full range of DSP amplifiers this kind of upgrade is built around. Once it's loaded with a custom tune for the vehicle, you get independent control over gain, crossover points and time alignment per channel, plus considerably more clean power than the factory amplifier can deliver, whether the car started with a standard system or Burmester.
From there, the natural next step is a plug-and-play component speaker upgrade fitted into the factory door locations, paired with a compact bench-box subwoofer in the boot to fill in the low end a factory system can't reach. Every factory-branded element — steering wheel audio controls, MBUX infotainment, microphone, Burmester badging — keeps working exactly as before. Nothing is cut or bypassed, and the whole install is fully reversible.
Why HELIX and MATCH DSP amps are the right tool for this
HELIX and MATCH are part of the Audiotec Fischer group alongside BRAX, and all three brands are German-engineered specifically to integrate with a car's existing factory system rather than rip it out and start again — the same approach we've already applied to Ford, Audi and Nissan upgrade packages live on the site. This matters even more on a brand like Mercedes-Benz, where higher trims already carry genuinely good factory hardware; for owners of Burmester-equipped Mercedes-Benz models specifically, a DSP-based upgrade is about unlocking what that hardware is capable of through proper tuning and added power, rather than replacing it. If that's the system in your car, our Burmester-equipped Mercedes-Benz models page covers that approach in more detail.
Integrated Audio doesn't yet have a published upgrade package specifically for Mercedes-Benz — we're building one using the approach above, likely starting with the most popular models. In the meantime, browse our current car sound upgrade packages, or tell us which Mercedes-Benz you drive and we'll be in touch as soon as a dedicated package is ready.