2009 Nissan GT-R Skyline: Hertz & Audison Audio System Upgrade
The Nissan GT-R is known for raw performance, but owners often look to match its thrilling speed with equally powerful sound. For this 2009 GT-R Skyline, Sound Concept executed a full Hertz and Audison upgrade—integrating high-end electronics, powerful amplification, and acoustic treatment to transform the factory system into a clean, dynamic audio experience.