Sound Quality Our speaker accessory features a treble voice coil made from a titanium membrane, delivering crisp treble and reduced distortion for clear frequency performance. Wide Compatibility The voice coil is available in multiple diameter options including 4mm, 44.4mm, 51.3mm, 72.2mm, and 74.5mm, enabling compatibility with a wide range of speaker models. Construction The voice coil is constructed with a combination of plastic and metal, providing durability and longlasting performance even under heavy usage. Use scenarios In home audio , restore clear highs in bookshelf or ceiling speakers by replacing a worn treble coil. In professional settings, maintain fidelity in PA systems or studio monitors by using the coil as a durable replacement for damaged treble components. For DIY upgrades, enhance the frequency response of a home theater speaker setup without compromising durability or longevity.