Mercedes-Benz S-Class W222 Audio Upgrade Review: Cost & Results
Service Price
$approx. $1,500+
Estimated price · Actual price may vary by shop
Before
After
Process photos
Mercedes-Benz S-Class W222 audio upgrade: ~$1,500+. Experience significantly improved sound quality with clearer highs and deeper bass.
Elevating the Sound of a Luxury Sedan
The Mercedes-Benz S-Class W222 is the epitome of luxury and comfort, but for many owners, the factory audio system falls short of expectations. Even in a premium vehicle, the stock speakers often provide a basic sound experience, primarily designed to mask road noise rather than deliver an immersive musical journey. This was the case for an S350 owner in Busan, South Korea, who found the original sound system disappointing despite frequent music listening. The desire for richer bass and clearer highs led to a decision to upgrade the car's audio components.
Component Selection and Installation Process
The chosen upgrade focused on replacing the factory mid-range speakers and woofers with higher-fidelity components, along with the addition of a digital signal processing (DSP) amplifier. The primary components installed were the PHASS PE88P units, which combine a 3.5-inch mid-range speaker and a 1-inch tweeter, boasting a wide frequency response from 110Hz to 24.5kHz. These were paired with PHASS PE170PL 7-inch woofers, capable of reproducing frequencies as low as 50Hz, promising a significant improvement in bass depth and impact. A key advantage of these PHASS speakers is their Plug and Play (PNP) compatibility, utilizing custom connectors that allow for direct integration with the S-Class's wiring harness without modifications, ensuring safety and preserving the vehicle's electrical system integrity. The installation also included a Musway D8 DSP amplifier, which acts as the heart of the upgraded system, providing sufficient power to the speakers and allowing for precise audio tuning. This amplifier also features PNP connectivity, simplifying the installation process.
Before & After: The Sonic Transformation
The transformation from the stock system to the upgraded audio setup is substantial. Factory S-Class speakers, particularly the mid-range units, are often undersized and lack the capability to reproduce a full range of sound. The original woofers, while present, offer minimal low-frequency output, leaving music sounding thin and lacking impact. After the installation of the PHASS components and the Musway amplifier, the difference is night and day. The new mid-range and tweeter units deliver significantly higher audio resolution, bringing clarity and detail to vocals and instruments. The larger 7-inch woofers provide a deep, resonant bass that was previously absent, creating a much more engaging and full-bodied listening experience. The entire soundstage feels wider and more immersive. The installation process, including sound deadening for the doors and precise tuning using acoustic measurement equipment, took approximately 5 hours. This meticulous approach ensures that the new components perform optimally, delivering balanced sound across all frequencies and seating positions. The cost for this type of upgrade, including premium speakers and a DSP amplifier with PNP installation and tuning, typically ranges from approximately $1,500 USD upwards, depending on the specific components chosen and regional labor rates.
Is the Upgrade Worth It?
For owners who frequently enjoy music or are sensitive to audio quality, a car audio upgrade for the Mercedes-Benz S-Class W222 is a worthwhile investment. It transforms the in-car listening experience from merely functional to truly enjoyable. The key benefits include enhanced clarity, richer bass, and a more detailed soundstage. The use of PNP components minimizes risks associated with wiring modifications, and professional tuning ensures the system reaches its full potential. While the initial cost is significant, the increased satisfaction and enjoyment derived from the improved sound quality can justify the expense, especially for those who plan to keep the vehicle long-term. The durability of quality aftermarket speakers is excellent, often outlasting the vehicle itself with proper care, which includes protecting the cabin from excessive moisture and ensuring good ventilation.
Frequently Asked Questions
Q. How much does a car audio upgrade cost for a Mercedes-Benz S-Class W222?
This specific upgrade cost approximately $1,500+ USD. Typical US installations for similar premium upgrades can range from $1,500 to $4,500 or more, depending on components and labor.
Q. What car audio components give the best value for a Mercedes-Benz S-Class W222?
High-fidelity speakers like the PHASS PE88P and PE170PL offer excellent clarity and bass response. Proper sound deadening and a DSP amplifier, like the Musway D8, are crucial for maximizing longevity and sound quality.
Q. Is a car audio upgrade worth it for a Mercedes-Benz S-Class W222?
Yes, for audiophiles and frequent music listeners, an upgrade significantly enhances the driving experience. It provides a level of audio fidelity often missing from premium factory systems.
Q. How is a car audio system installed in a Mercedes-Benz S-Class W222?
Installation involves: 1. Removing factory speakers from doors and footwells. 2. Installing new mid-range, tweeter, and woofer units using PNP connectors. 3. Mounting and connecting a DSP amplifier. 4. Performing precise acoustic measurements and tuning.
Q. What is the difference between a stock and aftermarket audio system for a Mercedes-Benz S-Class W222?
Stock systems offer basic sound, often lacking bass and clarity. Aftermarket systems, like the one reviewed, provide significantly higher audio resolution, deeper bass, and a more immersive soundstage.
Q. What should I know before getting Car Audio on a Mercedes-Benz S-Class W222? (common regrets and mistakes)
The most common regret is not investing in professional tuning, which leaves even good components underperforming. Always ensure the installer performs detailed acoustic measurements and adjustments.
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