This bundle contains two pairs of MB Quart Formula 6.5 inch 2-way component car speakers MB Quart Formula 6.5 inch component car speaker system MB Quart Formula 6.5 inch component car speaker system with aluminum dome tweeters and Butyl rubber surrounds RMS Power Handling 70 Watts Peak Power Handling 140 Watts Speaker Impedance 4 Ohms Frequency Response 55Hz – 20k – Hz Sensitivity 88d – B Crossover Point 2k – Hz Crossover Slope 12d – B Mounting Diameter / Cut Out 5.59 Outside Diameter 7.01 Mounting Depth / Chassis Depth 2.12
- Voice Coil Former: Kapton voice coil former is lightweight and efficiently dissipates heat.
- Spider: Natural fiber allows flexibility while the infused epoxy gives strength during the manufacturing process.
- Cone Material: Lightweight thermal-formed polypropylene cones enable faster midrange response.
- Cooling System: Over-coil cooling system allows air exchange over the voice coil through the spider.