Pair of car tweeters 4 Ohm 150W 4" GTTP-15 Pair of very reliable and powerful speakers, with a beautiful design and excellent aluminum alloy material. The surface of the speakers is also made of high-quality alloy, produced by CNC milling technology, with glossy surface without using any kind of paint on the surface of the item. With such manufacturing making the speakers look natural and luxurious, this manufacturing method is completely different from the traditional speaker manufacturing technology. GTTP-15 speaker is specially designed with membrane made of Caraluminum nano material to help the speakers have the ability to create perfect sound without noise. It has a very high sensitivity of 91Db, making it possible to reproduce sound in almost any level. With a maximum power of 150watts it offers optimal performance. 4" Diameter:  Compact size that easily adapts to different setups without sacrificing sound quality. Robust Construction:  Made with high quality materials to ensure durability and reliability over time. Elegant Design:  Modern design that integrates perfectly with the interior of your car. Characteristics Model: GTTP-15 Maximum power: 150W Usage power: 30W Frequency response: 35Hz - 20KHz Impedance: 4 ohms Sensitivity: 91dB Front diameter: 10cm Speaker surface material: aluminum alloy Both speakers are equipped with 1 capacitor Distance between holes diagonally: approx. 9cm Distance between holes: 6.5cm Mounting depth: 4.5cm  Magnet diameter: 7cm Tweeter diameter: 9.8cm