1、DIY tweeter voice coil for home theater systems, professional audio and compression drives. 2、High reliability and low consumption. 3、The tone is good, the distortion is small, and the treble is clear and transparent. 4、Made of titanium film, durable. 5、With terminal block, convenient wiring. This loudspeaker unit apply to home theatre system, professional audio and compression drive Features: DIY tweeter voice coil for home theater systems, professional audio and compression drives. High reliability and low consumption. The tone is good, the distortion is small, and the treble is clear and transparent. Made of titanium film, durable. With terminal block, convenient wiring. Specification: Coil material: imported copper clad aluminum round wire Coil bobbin: Kabitong (KSV) Voice coil inner diameter: 34.4mm/ 1.3 in Terminal center distance: 74mm/ 2.9in Aluminum sheet outer diameter: 63mm/ 2.5in Ball top height: 5.5mm/ 0.2in Sound film material: Titanium Film Resistance: 8Ω Power: Comparable to original power (depending on magnetic steel conversion efficiency)      Package list: 1 * 34.4mm Tweeter Voice Coil Note: The measurement allowed error is +/- 1-3cm.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.