Amazing sound quality isn't achieved without great technology, a keen ear and a constant stride for innovation. Regardless of the system, the In Phase XTC17.2CF speaker system delivers 320 watts of peak power, with deep rich bass, detailed midrange and sharp and crystal-clear highs. The smart adjustable tweeter design of the 6.5” speakers enables you to focus the sound on your required listening angle, giving you the presence of a higher and deeper sound stage and more detailed separation. Thanks to the high-quality powered coated chassis, which dampens distortion, and the glass fibre woven cone which adds rigidity without added weight, all contribute to delivering a much more immersive listening experience. These speakers were designed for simple installation into a wide variety of vehicles, with an included adapter usable in over 350 vehicles. All In Phase SPX, XTC and SXT speakers are designed in the UK, utilizing over 30 years of audio experience to create a sound that is right for you. Coaxial speakers, also known as full-range speakers, use two speakers rather than one, providing a more detailed quality sound than their dual-cone counterparts. The tweeter at the center of the cone allows higher-end frequencies (treble) to be distributed from a single point, giving a more precise delivery and eliminating the need for a separate crossover as it is built-in. Glass Fibre is a high mechanical strength fibre, mostly used when strength without weight is needed, offering high endurance and high-end performance for a speaker. The 10-ounce magnet allows for perfect bass response not normally heard in a 17cm speaker. These speakers can handle up to 75W RMS to each speaker and 320W peak power for both, which is high for a 17cm speaker. They can be run on your head unit or via a separate amplifier. Car Audio Speakers come in Pairs. Speaker Size: 17cm (6.5"). Universal Adapter included. Max Power: 320W. RMS Power: 75W. Frequency Response: 35 - 25,000 Hz. Sensitivity: 90 dB. Features a stronger glass fibre woven cone, rubber surround that absorbs vibrations, a powered coated dampener speaker chassis, and a directional rotational tweeter. Mounting depth: 62.1mm. Woofer magnet: 10.97oz. Easy Installation.