Steven’s Mercedes C63C AMG is a high-performance machine with the roar of a V8 and the elegance of German design — but when it came to sound, the stock Burmester system left much to be desired. Despite its brand prestige, it lacked the clarity, dynamic range, and punch he expected from a vehicle in this class.
Steven's goal was clear:
"I want depth, stage, detail, and bass — but I don’t want to see anything aftermarket."
He wanted stealthy high-end. That’s exactly our language.
🎼 Original Setup:
The C63 came equipped with a basic 7-speaker Burmester system, featuring:
- 2-way front components running on passive crossovers
- 2x rear coaxial speakers
- A single 8″ flat subwoofer under the passenger floor
- Everything powered solely by the factory head unit
In short? No external amplifier — and no real excitement.
🚀 The Upgrade Plan: Full MATCH + STEG OEM+ Retrofit with Extra JL Audio Subwoofer
We suggested a full audio transformation while preserving factory aesthetics. The solution: high-end MATCH and STEG components, plus the addition of a JL Audio subwoofer to bring more weight and dynamics to the low end.
⚒️ The MC Audio Approach: Precision + Passion
🔄 Day 1: Disassembly + Signal Mapping
Our technicians carefully disassembled the interior panels, ran diagnostics on the MBUX signal outputs, and mapped speaker channels. The PP-MB 1.9MBUX-BUR harness allowed seamless DSP integration with no warning lights or interference.
🔊 Day 2–3: Speaker Replacement
We upgraded all drivers using Mercedes-specific STEG BZ series:
- 🎵 STEG BZ40AII – 4″ front components
- 🎶 STEG BZ40B – 4″ rear surrounds
- 🎤 STEG BZ40C – 4″ centre speaker
Each speaker fits perfectly using OEM mounts and delivers a massive jump in fidelity and vocal clarity.
🔊 Day 4: Bass & DSP Installation
A pair of STEG BZW80 8″ underseat subwoofers (2Ω) replaced the limited factory bass, and we added a JL Audio active subwoofer discreetly installed in the boot. Together, they created a tight, punchy low-end that completely transformed the in-cabin experience.
These were powered by a MATCH UP 10DSP MEC Analog IN amplifier, offering:
- Fully customisable tuning
- Independent channel control
- Acoustic phase alignment
📅 Day 5: Final Tuning + OEM Integration
Using professional RTA microphones and DSP software, our engineers applied:
- 🎶 30-band EQ
- ⚖️ Time alignment
- ⟳ Phase correction
- 🎭 Driver-focused staging
All factory features were retained, including:
- MBUX display
- Steering wheel buttons
- Vehicle notifications and chimes
🧰 Component List
| Category | Product |
|---|---|
| 🔹 Amplifier | MATCH UP 10DSP MEC Analog IN for Mercedes/BMW |
| 🔹 DSP Harness | PP-MB 1.9MBUX-BUR (for Mercedes with Burmester) |
| 🔹 Front Speakers | STEG BZ40AII Premium 4" Component |
| 🔹 Rear Speakers | STEG BZ40B 4" Surround |
| 🔹 Centre Speaker | STEG BZ40C 4" Centre |
| 🔹 Underseat Subs | STEG BZW80 R+L 8" Underseat (2Ω) |
| 🔹 Additional Sub | JL Audio Active Subwoofer (boot-mounted) |
| 🔹 Accessories | AUDIO SYSTEM 04 AMP INST Installation Kit |
📍 Installed at MC Audio | Sydney’s Mercedes Sound Upgrade Specialists
At MC Audio, we bring European sound engineering to Sydney roads. Whether you're building for performance or comfort, we deliver OEM+ sound upgrades that exceed factory systems without disrupting original design.
📍 Visit us: Unit 10 / 5–7 Bermill St, Rockdale, NSW
📞 0415 072 361
📧 info@mechatronicar.com.au
