SoundRacer Electric Vehicle Sound Module EVSMA-1


Sound Module for electric and hybrid vehicles.

These modules are designed for pedestrian warning sound and entertainment engine sound for enhanced driving experience.

  • E-car manufacturers during evaluation and development of the sound system. When the desired features and sound for a specific electric vehicle is determined a dedicated module for that vehicle can be produced.
  • Electric scooters and motorcycles
  • Electric vehicles like NEVs and golf karts manufactured in small numbers
  • Cars converted to electric
  • Home built electric cars
  • E-Karts



Vehicle speed or RPM input

0‐5V analog signal.

0‐x Hz frequency signal

CAN bus input is implemented for EV manufacturers to customer specifications.

More info about input signals here

Engine sound output

EVSMA-1:  2x20W integrated Class-D amplifier. Connect directly to speakers.

Engine sounds, see page EV Sounds

Sound files are stored on a MicroSD memory card. These engine sounds are included with the sound module:
Shelby V8, Lamborghini V10, Lexus LFA V10, Ferrari V12  and the motorcycle sounds Suzuki GSX and Classic V-Twin motorcycle.
More engine sounds will be available.
Custom sounds can be developed for vehicle manufacturers.

MicroSD memory card:

Input signal settings and other parameters are stored together with the sound files on a MicroSD memory card. User can select settings and sounds in the SRFileGen Windows program and store on the MicroSD card.

Gear change function

Simulated gear changes at two different speeds, customer specified with the SRFileGen Windows program. The function is selectable with external switch.

Power supply

Voltage 10‐15V DC. Current consumption less than <4A with full sound level output.


Box with mounting flanges:

EVSMA-1:  87 x 57 x 39 mm. 16 pin connector.


Available now from SoundRacer AB. Fill in this form for info.

EVSMA-1 with 2x20W amplifier and MicroSD card for storing sounds and settings

EVSMA-1 w MicroSD

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