We are looking for acoustic filter cores (without housing) for integration into reusable high-fidelity earplugs.
- Flat attenuation target: Around 20dB SNR
- Must allow clear speech and sound
- Include mesh + membrane (no plastic outer shell)
- Please share technical specs, attenuation curve, and any available test data (e. G. EN 352)
- We will handle all final assembly in our own production process