The BMW X3 G01 2020 is a luxury SUV that excels in design and performance. However, its HiFi S0676 Sound System often underwhelms with limited clarity, bass, and dynamics—especially at higher volumes. That’s why a customer approached MC Audio, looking to elevate their driving experience with a superior audio upgrade.

Original Setup: HiFi S0676 Sound System
The factory system in the BMW X3 G01 included:
- Factory amplifier with high-level output signals.
- Split component speakers with limited performance.
- A centre speaker sharing channels with others.
- Two under-seat subwoofers with minimal power output.
- Aluminium dome tweeters, lacking clarity at higher frequencies.
While functional, this setup struggled with distortion, a flat soundstage, and weak bass response, leaving much to be desired in audio performance.
The MC Audio Upgrade: Plug-and-Play Excellence
At MC Audio, we reimagined the BMW X3 G01’s audio system using Audiotec Fischer-approved plug-and-play solutions. Our installation preserved the vehicle's warranty and aesthetics while delivering premium sound quality.
New Setup Features:
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MATCH UP 8DSP Amplifier
- Powerful 8-channel amplifier with an integrated Digital Signal Processor (DSP) for precise tuning and balanced sound output.
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MUSWAY and STEG Speakers
- High-quality aftermarket speakers replaced the factory components for greater clarity, dynamic range, and distortion-free volume.
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MATCH Under-Seat Subwoofers
- Upgraded 8-inch subwoofers provide tight, impactful bass, enhancing low-frequency performance.
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Dedicated Centre Channel
- A new centre speaker operating independently, delivering a balanced and immersive soundstage.
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Custom-Tuned Sound Stage
- Advanced tuning tailored to the client’s musical preferences for a vibrant and immersive listening experience.
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Plug-and-Play Adaptors and Harnesses
- Seamlessly integrated components ensure the system is reversible and preserve the car’s original wiring.


Why Plug-and-Play Matters
Our plug-and-play approach ensures:
- Warranty Preservation: No permanent modifications protect your car’s warranty.
- Stealth Installation: All components are concealed, maintaining the factory aesthetic.
- Reversibility: The system can be restored to the factory setup without leaving any trace.
The Tuning Process
Every car and driver has unique preferences, so we fine-tune every upgrade using Audiotec Fischer’s advanced DSP software. This includes:
- Sound Analysis: Measuring performance with pink noise and microphones.
- Speaker Calibration: Balancing each channel for perfect clarity and imaging.
- Customization: Tailoring settings to the client’s favorite music genres and volume preferences.
The result is a soundstage that feels natural, immersive, and vibrant.

The Results: A Superior Sound Experience
Post-upgrade, the customer experienced:
- Crystal-Clear Audio: Improved clarity with perfect sound imaging.
- Dynamic Bass Performance: Rich, powerful bass without distortion, even at higher volumes.
- Premium Integration: The system seamlessly blended with the car’s interior design.
- Efficient Installation: Completed within 1–2 days.
The customer noted that the upgraded system exceeded the performance of the Harman Kardon setup they’d experienced in a previous BMW.
Why Choose MC Audio?
As an official Audiotec Fischer partner, we provide bespoke audio solutions tailored to BMW vehicles. Our team of certified installers ensures every component is installed with precision, delivering unmatched sound quality and performance.

Upgrade Your BMW X3 G01 Today
Don’t settle for mediocre sound quality in your luxury SUV. Let MC Audio transform your BMW X3 G01 into a mobile concert hall with our HiFi S0676 to premium audio upgrade.
📞 Call us: 0415 072 361
📧 Email us: sales@mechatronicar.com.au
📍 Visit us: Unit 10 / 5-7 Bermill St, Rockdale, Sydney
MC Audio—where premium sound meets luxury driving.