The in-car audio system (infotainment) has become one of the essential elements of comfort and entertainment for passengers. Its role goes far beyond simple leisure—it is now an integral part of the modern driving experience. Experts confirm that sound has a profound effect on both mood and safety, influencing driver focus and relaxation . Automakers are therefore collaborating with leading audio companies to deliver the most advanced sound technologies on the road. This report explores the standout brands and systems across luxury, mid-range, and even economy cars, while also highlighting cutting-edge features such as 3D surround sound, Dolby Atmos, active noise cancellation, smart assistants, and innovative speaker layouts.
Audio Systems in Luxury Cars
Luxury vehicles often feature tailor-made systems from high-end audio specialists. Mercedes-Benz, for instance, partners with Burmester to equip its cars with the Burmester 4D Surround Sound system, offering 17–26 speakers with 1,570 watts of power . In the flagship S-Class and Maybach, the Burmester High-End 4D system offers 31 speakers and 1,750 watts , delivering a truly immersive experience.
Audi relies on Bang & Olufsen 3D Advanced Sound, with up to 23 speakers distributed throughout the cabin, including units in the A-pillars and roof, and ICEpower amplifiers producing up to 1,920 watts . Deployable acoustic lenses rise from the dashboard to spread sound across 180 degrees , creating a concert hall-like atmosphere.
Volvo and Polestar collaborate with Bowers & Wilkins to deliver pristine, studio-quality audio. In Volvo’s XC60, a visible subwoofer is mounted in the center of the dashboard , while the Polestar 3 offers a 25-speaker system with 1,610 watts, Dolby Atmos, and headrest speakers for enhanced immersion .
Lexus continues its long-standing partnership with Mark Levinson, offering 23–25 speakers in models like the LS and LX, with advanced 3D surround technology for exceptionally clear and balanced sound .
Audio Systems in Mid-Range and Economy Cars
Advanced audio is no longer exclusive to premium models. Toyota has worked with JBL since the 1990s to design custom systems. Cars like the Camry, Corolla, and Corolla Cross feature JBL systems with 8–9 speakers and up to 800 watts . Larger models, such as the Highlander, carry 11 speakers with 1,200 watts , while the Sequoia SUV boasts a 14-speaker, 1,200-watt JBL setup with QuantumLogic Surround for enhanced distribution .
Other mid-tier brands are also integrating premium options. Lincoln, for example, offers Revel by Harman systems with custom speaker arrangements designed to rival luxury counterparts.
Modern Sound Technologies in Cars
One of the biggest leaps in recent years is 3D surround sound, where audio moves not just left-right or front-back, but vertically as well. The Polestar 3’s B&W system integrates Dolby Atmos , while the Lucid Air Grand Touring includes a 21-speaker “Surreal Sound Pro” system with Dolby Atmos, delivering extraordinary depth and realism . Brands like Bose offer advanced ANC solutions, such as QuietComfort Road Noise Control, which uses sensors and microphones to generate anti-phase signals that cancel road and tire noise . Polestar 3 also incorporates ANC to reduce wind and tire sounds while preserving critical alerts like sirens .
Car audio systems are increasingly connected to AI assistants. In the Polestar 3, for example, drivers can control music and climate via voice commands through Google Assistant . Audi’s MMI system also allows tactile and interactive audio adjustments , while Bentley integrates BeoSonic presets (e.g., Bright, Warm) for customizable soundscapes .
Speaker Placement & Design
Speaker distribution is crucial for immersive sound. Bang & Olufsen places up to 23 speakers around the cabin, including roof units . Volvo’s dashboard subwoofer and tweeter integration or Polestar’s headrest speakers showcase how placement enhances clarity and realism for all passengers.
Quality sound has a tangible effect on driver well-being. Studies show that music can influence mood: fast rhythms can sharpen focus, while calmer tracks promote relaxation . According to the U.S. NHTSA, music can also reduce fatigue on long drives, improving alertness and lowering accident risk . A premium audio system therefore adds not only a sense of luxury but also enhances comfort, concentration, and enjoyment on every journey.
