Kia EV9 Car Audio Upgrade Review — Enhanced Sound
Service Price
$75–115
Estimated price · Actual price may vary by shop
Kia EV9 car audio upgrade with Musway M12 DSP: Approx. $1000+. Enhanced sound, richer bass, and karaoke integration.
Elevating the Kia EV9's Audio Experience
Many Kia EV9 owners find the factory audio system, often a direct-drive (no external amplifier) setup, leaves something to be desired. Common complaints include an imbalanced sound profile and a lack of clarity, particularly due to the absence of a dedicated center speaker. This review details a comprehensive car audio upgrade focusing on a Musway M12 DSP amplifier, PHASS speakers, and even a Taesung karaoke unit, transforming the EV9's auditory landscape. The cost for such a comprehensive sound system upgrade in Korea typically starts in the high 1 million KRW range (approximately $1,000+ USD), with final pricing varying based on component selection and the scope of work.
Comprehensive Sound System Installation
This EV9 received a significant audio overhaul, moving beyond a simple speaker swap to a full system integration. The process began with meticulous door soundproofing using thick, high-adhesion Pure Analog damping mats. This crucial step minimizes road noise and internal rattles, creating a solid foundation for the new speakers. Existing PHASS 170 front speakers were retained but enhanced with baffle foam to improve efficiency and reduce trim noise. New midrange speakers were carefully integrated into the A-pillars, and a custom-made center speaker mount was fabricated from Formex. The rear speakers also benefited from sound deadening and custom birch wood adapters for a secure fit, with additional foam applied to the 3rd-row trim to prevent vibrations.
The heart of this upgrade is the Musway M12 DSP amplifier. This high-performance unit boasts 11 channels of speaker output and supports high-quality Bluetooth audio (BTS HD). It allows for a complete multi-channel system configuration and enables the addition of an external subwoofer amplifier for deeper bass. To achieve this, a Rainbow 2-channel amplifier was installed to power two PHASS subwoofers, creating a powerful low-frequency foundation. For added entertainment, a Taesung karaoke machine was also integrated into the system.
DSP Tuning and Final Results
The final and most critical stage involves precise Digital Signal Processing (DSP) tuning using the Musway M12. This allows for individual channel equalization, time alignment, and crossover adjustments to create a perfectly balanced soundstage tailored to the EV9's interior. The result is a dramatic improvement over the stock system, with clear highs, well-defined mids, and impactful bass. The addition of the karaoke system provides a unique entertainment option for passengers. While the initial investment is significant, the enhanced listening pleasure and added functionality make this a worthwhile car audio upgrade for discerning EV9 owners.
Installation Process:
- Sound Deadening: Application of high-quality damping mats to vehicle doors and panels to reduce vibrations and road noise.
- Component Mounting: Secure installation of new speakers, subwoofers, and amplifiers using custom-made adapters and brackets.
- Wiring and Integration: Professional wiring of all components, including the DSP amplifier and any additional units like the karaoke machine.
- DSP Tuning: Calibration of the Digital Signal Processor for optimal sound imaging, equalization, and frequency response.
Frequently Asked Questions
Q. How much does a car audio upgrade cost for a Kia EV9?
This comprehensive upgrade in Korea cost in the high 1 million KRW range (approximately $1,000+ USD). Typical US installation costs for a similar speaker and amplifier upgrade can range from $750 to $2,500 depending on components and complexity.
Q. What car audio components give the best value for a Kia EV9?
A quality DSP amplifier like the Musway M12 offers significant value by allowing precise tuning of all speakers for improved soundstage and clarity. For durability, ensure speakers are securely mounted with proper sealing and consider sound deadening for longevity and optimal performance.
Q. Is a car audio upgrade worth it for a Kia EV9?
A car audio upgrade is highly worth it for Kia EV9 owners seeking a superior listening experience beyond the factory system's limitations. It significantly enhances sound clarity, bass response, and overall audio enjoyment, making daily drives more pleasurable.
Q. How is a car audio system installed in a Kia EV9?
Installation involves sound deadening the doors, securely mounting new speakers and subwoofers using custom adapters, integrating a DSP amplifier and potentially external amplifiers, and professional wiring. The final step is precise DSP tuning to optimize the sound profile.
Q. What is the difference between a stock and aftermarket audio system for a Kia EV9?
The stock EV9 system often lacks external amplification and a center speaker, resulting in less balanced sound. Aftermarket systems, especially with a DSP amplifier, offer significantly improved clarity, power, and a customizable soundstage for a truly immersive experience.
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