Speakers That Boost EV Range? Sounds Impossible, But It's True – International Edition (English)

The speakers can apparently boost EV range and provide “personal bubbles” for each passenger with “virtual headphones.”

• A British audio speaker company claims its in-vehicle sound technology can boost range for electric vehicles with lighter weight and less energy consumption.
• Apparently, "electrostatic speakers" can generate "personal bubbles" within the cabin, reducing noise interference.
• Reports indicate that they are set to appear in an upcoming electric vehicle this year, with speculations pointing towards the fully electric Range Rover as their potential debut platform.

Auto manufacturers worldwide continually seek methods to boost the driving range of electric cars. Established approaches include using high-density battery packs, energy-efficient engines, and sleek aerodynamics. Nevertheless, an innovative UK-based firm asserts that they have developed a fresh, unconventional approach which could extend the distance you can travel with your EV.

Uh, that solution would be energy-efficient speakers.

British firm Warwick Acoustics claims that its sound technology can enhance the driving range of electric vehicles by up to 20 miles more than conventional audio systems. This improvement in range is due to the use of lightweight "electrostatic speakers," The Independent First mentioned on Thursday, they have incorporated these speakers into a prototype. Polestar 2 , boasting about offering 90% lighter weight, consuming 90% less energy, and being fully recyclable. Of course, these figures could vary based on factors such as battery size and overall vehicle weight.

It is said that the speakers are extremely slim, making their packaging straightforward and efficient. According to the company, these speakers are scheduled to appear in a production car later this year. Rumors suggest they might debut in an upcoming fully electric Range Rover model as reported by the media outlet.

Warwick Acoustics explains in a blog Electrostatic speakers produce sound via a thin, electrically charged membrane positioned between two metallic plates. An audio signal generates an electrostatic field which causes this diaphragm to move, thus generating sound waves. In theory, they promise superior clarity along with reduced distortion levels.

In contrast, conventional speakers employ coils and magnetic fields to produce sound. However, the company claims these components possess excessive weight and numerous movable elements, leading to distortion.

The firm claims that when placed inside a headrest, conventional speakers struggle with frequency range and coverage area. "An electrostatic speaker allows for shaping the diaphragm across the whole headrest," enabling each occupant to experience "a precisely calibrated sound field without experiencing abrupt drops in volume as their head moves."

This can aid in establishing "individual spaces" for each occupant without causing "audio interference." Thus, if the driver needs to take a call, rear passengers can keep listening to their music undisturbed. Presumably, this means that everyone inside the vehicle can enjoy content according to their preferences without conflict.

Auto manufacturers have been intensely concentrating on enhancing electric vehicles' efficiency by eliminating superfluous components, employing fewer parts, utilizing mega-sized casting for significant sections of the underbody, and adopting a simplified production process similar to Tesla’s methodology. This focus aims at boosting both range and efficiency. Additionally, innovative ideas from component suppliers are emerging. However, you can be confident that beloved audio systems will remain intact in these advancements.

If the electrostatic speakers indeed find their way into the electric Range Rover as speculated, we will definitely test them out to determine whether they can compete with top-tier brands such as Meridian, Burmester, Bose, and others in the realm of high-end audio systems.

Got a tip? Reach out to the author: suvrat.kothari@insideevs.com

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