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Spiral Ear specialises in the manufacture of soft-shell custom in- ear monitors. We have also expanded into the universal IEM market, and some of our custom models are available in universal-fit versions as well.

All custom-fit in-ear monitors designed by Spiral Ear are hand- crafted and utilise soft, medical-grade silicone. Thanks to its flexibility, the material naturally adapts to the unique anatomy of your ears, providing one of the highest and most consistent seals possible—resulting in excellent isolation from ambient noise.

In addition, silicone adapts more easily and comfortably to changes in the ear canal than typical hard materials, minimising fit variations caused by natural jaw and muscle movements. As a result, silicone delivers the ultimate fit and long-term comfort.
SE 3-way Reference, circa 2010.
SE 5-way Reference, circa 2011.
Silicone monitors provide superior isolation from ambient noise compared to any other type of custom-made IEM. Noise reduction in Spiral Ear custom monitors is not model-dependent; all of our monitors offer the same high level of isolation. On average, our monitors provide approximately –37 dB of noise reduction. This value may vary depending on individual ear anatomy and the ability to accommodate longer ear canals.
These factors play a crucial role in overall sound quality, realism, and comfort—significantly outperforming the hard-shell acrylic customs that dominate the market today. The enhanced isolation achieved by hand-crafted silicone also allows listening at substantially lower sound pressure levels (SPL), enabling longer safe listening times and helping to protect your hearing.

Take advantage of our experience and expertise in designing custom IEMs since 2010 and beyond.

Rediscover your music in a way you’ve never heard before!
SE 5-way Reference, circa 2011.