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Collaborating for Excellence: The Making of HornAudio’s “Sim” Subwoofer

29 Aug 2022 | Development

At HornAudio, we believe in the power of collaboration to create something truly special. That’s why we are excited to partner with Ynse Heegstra, a social working place and my neighbour’s greenhouse to create our latest subwoofer, the “Sim.” In this blog post, we’ll take you behind the scenes of the making of the “Sim” subwoofer and show you the different stages of production, from the initial CNC cut to the final assembly.

CNC Cut by Ynse Heegstra

The first step in crafting the “Sim” subwoofer was to create the wooden parts. We partnered with Ynse Heegstra, who used his CNC machine to cut the wood to the precise measurements we needed. This step was essential in ensuring that the final product has the perfect shape and size.

hornaudio sim subwoofer first production glue and assembly

Assembly at a Social Working Place

After the wood was cut, it was time to assemble the pieces of the speaker. We teamed up with a social working place, where the team members carefully put the speaker together, ensuring that each piece fit perfectly.

The social working place is a non-profit organization that provides training and employment opportunities to individuals who may have difficulty finding work due to various challenges. The team members at the social working place were highly motivated and dedicated to ensuring that the “Sim” subwoofer was assembled to the highest standards.

Working with the social working place not only helped us to create a high-quality product, but it also helped to make a positive impact in the community. By providing training and employment opportunities, we are helping to break down barriers and build a more inclusive society. We are proud to be able to support such an important cause, and we look forward to continuing to work with the social working place in the future.

hornaudio sim subwoofer first production paint it black


After the speaker was assembled, it was time to give it a final touch of paint. I painted the speaker black at my neighbour’s greenhouse. At HornAudio we use a paint called “Warnex”. This step helped to give the speaker a sleek and professional look, and also helped to protect the wood from any damage.

Final Assembly

The final step in creating the “Sim” subwoofer was to add the 4-inch bass loudspeaker and wireless streaming amplifier. I did this step at my kitchen table, carefully connecting all the wires and ensuring that everything was working properly. This step was important for ensuring that the final product would have the best sound quality possible.

hornaudio sim subwoofer first production with wireless streaming amplifier


Creating the “Sim” subwoofer was a journey that involved the efforts and expertise of many different people. From Ynse Heegstra’s CNC cut wood, to the assembly at a social working place, to the painting and final assembly by me, Marcel from HornAudio, we are proud to have created a high-quality subwoofer that will add amazing bass and deep sound to the “Pixi” magical loudspeakers. And this is just the first of a series of 3 subs: “Sim”, “Sala” and “Bim”.


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