Polypropylene is great material for speaker cone diaphragms due to its all-weather performance. When the weather is wet, the weight of some cones can increase; reducing its sensitivity. When the weather is hot, some cones (or only part of them) can expand and become larger. In both cases, the sound can become distorted. No matter what the weather, the sturdy polypropylene cones are not affected by these issues and they produce a clear, vivid sound every time.

Fits perfectly in all 16 x 24 cm speaker openings.

The speaker grille has been designed to give cars the look of luxury. Composed of two parts — a detachable metal mesh casing and a plastic ring. When installed over the speaker, it fully covers the tweeter dome and speaker cone. Hard and durable, it protects the speakers from accidental kicks and curious fingers, both of which can be damaging to their sound performance.