FOUR Connect

27/07/2026

A great audio system starts with a properly treated vehicle. In this CMA Workshop video you can learn how to select the right FOUR products for dampening.

26/05/2026

This BMW i4 received a full sound deadening upgrade — and the difference is definitely noticeable.

Using FOUR Basemat SOLO, S2-MultiBase, S3-Door Solution PRO and S2-TopFlex, the cabin became noticeably quieter and gained an even more premium feel.

At the same time, the audio system now sounds cleaner, more precise and better balanced.

These kinds of projects are always rewarding to build!

18/05/2026

FOUR S1-FabricTape and S2-SoftTape are designed to effectively reduce rattles, resonance and other unwanted interior noises.

The result is a noticeably quieter cabin and a more premium driving experience.

• S1-FabricTape – a flexible fabric tape for eliminating squeaks and friction between interior panels�
• S2-SoftTape – a thick sealing tape designed to reduce resonance and rattling

Suitable for doors, dashboards, interior trim, trunks and speaker sealing. The self-adhesive design makes installation quick and easy.

13/05/2026

A quieter car starts with the doors.

Four S2-Door solution & S3-Door Solution PRO kits are designed to reduce road noise, door resonance and unwanted interior sounds — making every drive noticeably quieter and more comfortable.

Packages contain a variety of sound-absorbing materials that work together to improve sound insulation, reduce resonance, and eliminate unwanted rattles in the interior.

• S2-Door solution – an easy and effective solution for insulating two doors�
• S3-Door Solution PRO – a complete premium package for maximum sound deadening

Flexible and easy-to-shape materials ensure clean installation, even in more demanding areas.

11/05/2026

Less noise. More driving comfort.

FOUR S1, S2 and S3-MultiBase sound insulation mats effectively reduce road noise, panel resonance and other unwanted sounds inside your vehicle.

Thanks to their flexible structure, the mats are easy to install neatly on curved surfaces such as doors, floors, wheel arches and trunks.

• S1-MultiBase – an effective all-around solution for sound reduction�
• S2-MultiBase – combines sound insulation with resonance control�
• S3-MultiBase – maximum noise reduction for demanding applications

For the best results, install MultiBase over an aluminum butyl mat. This combination provides highly effective sound insulation and reduces panel resonance even further.

01/04/2026

Now it’s here – premium FOUR SOLO Reserve coffee beans, fully produced in Finland.

Carefully selected beans and uncompromising quality deliver a unique taste experience in every cup. Experience Finnish coffee enjoyment at its finest.

Available from all our retailers.

06/03/2026

BASEMAT damping mats are designed to dampen all disturbing resonances and improve sound insulation in various applications.

Flexible and easy to install, BASEMAT does not require preheating. The product can be installed quickly and effortlessly.

Watch our customer's installation video and hear how big an impact roof soundproofing can have!

24/02/2026

Four damping mats are made from very high-quality materials, and we don't just have to tell you that, we can also show you!
We are publishing a frost test conducted by the factory, where the adhesion and flexibility of aluminum butyl damping mats are tested under extreme cold conditions.

The video shows how the mats stay firmly attached to the metal surface and do not crack, even when the plate is cooled to a very low temperature❄️.

The products are designed in Finland and manufactured in Europe.

We are proudly presenting the new FOUR products!BASEMAT damping mats are designed to dampen all disturbing resonances and improve sound insulation in various...

23/02/2026

Four Basemats are manufactured from exceptionally high-quality materials - we don’t just say it, we prove it.

We relase a video from factory-conducted heat test where the adhesion of our aluminum butyl mats is tested under extreme conditions.

In the video, you’ll see how the mats remain firmly bonded to a metal surface even when the panel is heated to very high temperatures.

Designed in Finland. Manufactured in Europe.

We are proudly presenting the new FOUR products!BASEMAT damping mats are designed to dampen all disturbing resonances and improve sound insulation in various...