These ACV speaker rings are perfect for VW Golf II and Jetta cars, ensuring proper sound system installation in the front doors or grille.

These ACV speaker rings are perfect for Audi, VW and Skoda front doors, ensuring proper installation of 165mm speakers. They help achieve optimal sound quality in your car.

This ACV mounting frame will allow you to easily install 165mm speakers in your Ford car. Perfectly suited for various Ford models, ensuring a high-quality sound system upgrade.

Special adapter rings allow for easy and acoustically optimized installation of HELIX loudspeakers in the car's original mounting locations. They are made from extremely robust and durable material, ensuring longevity under various conditions.

Restore your Ground Zero GZPW 15SPL subwoofer with this high-quality recone kit. It's the perfect solution for those looking to restore the original sound quality

These ACV rings ensure the correct installation of 130 mm speakers in the front doors or rear shelf of a BMW 3 Series. They help to upgrade the car's sound system, providing clearer sound.

The adapter allows for easy connection of Helix Compose series speakers to a Mercedes car, preserving the original wiring. This is a simple solution for installing a high-quality sound system.

The vehicle-specific adapter ring allows for easy and acoustically optimized integration of the HELIX COMPOSE midrange speaker into the original mounting location. The patented bayonet lock ensures a secure fit and simple installation.

This expansion card provides two additional analogue inputs to your audio system, ensuring maximum flexibility when connecting various signal sources. It integrates easily with OEM systems and allows for full configuration via the DSP PC-Tool.