Audiopipe ATR-4053 RED Eye Candy Aluminum Tweeter Diamond Chrome Cutting Finish bullet super tweeter! With high frequency response up to 22KHz and a sensitivity of 107 dB can keep up with even the most demanding speaker systems. A square faceplate makes it easier to install, made from a strong aluminum horn, which offers a smooth response and extremely high efficiency, enabling it to cover a wide frequency range and offer a smooth response. Features: Aluminum tweeter diamond chrome cutting finish 1.5” High temperature kapton voice coil 13 Oz Magnet structure 400 Watts peak power 4-8 Ohms impedance Ferro fluid enhanced voice coil Sensitivity: 107 dB Frequency response: 3000-22KHz Crossover capacitor included Dimensions: Overall Diameter: 4"/ 102mm Overall Depth: 2.6" / 66mm Front Mount Baffle Cutout: (Cut Hole) 3.6" / 92mm Mounting Depth: 2.2" / 55mm Motor Diameter: 3.5" / 90mm INSTALLATION INSTRUCTIONS If you purchased a Crossover Network for your woofer, Midrange or Tweeter system, you do not need to connect a condenser. If your system does not include a Crossover Network, you must connect a capacitor as follows: 1. Connect either end of the capacitor to the positive terminal (+) of speaker. 2. Connect other end of the capacitor to the speaker wire harness; be certain to connect to the positive side of the harness, which is the radio output (+) side. 3. To get better sound performance, it is recommended to use capacitor 1.5μF/250V for this unit.