Features: Treble voice coils speaker film, a professional high-pitched speaker. Utilizing advanced materials and techniques, it delivers clear and high-fidelity sound quality. High sensitivity, low distortion, and wear resistance. Effectively enhances sound detail and purity. Suitable for home theaters, speaker systems, performances, and other applications requiring quality sound. Specifications: Type: A 34.4mm, B 44.4mm, C 51.3mm, D 72.2mm, E 74.5mm (optional) Size: As shown in pictures Voice coil diameter: 34.4mm, 44.4mm, 51.3mm, 72.2mm, 74.5mm Power: up to 40-100W Impedance: 8 ohms Direct current resistance: 6.2 ohms Border color: Silver Border material: Plastic + metal Sound film material: Titanium film Coil material: Copper-clad Note: Allow 1-2cm measurement deviation due to manual measurement. Slight color variations may occur due to different display resolutions. Package includes: 1 x Treble Voice Coils Speaker Film