Alpine SS57 5×7″ Rear Factory Speaker Replacement Kit For 99-02 Ford Expedition Alpine

Alpine SS57 5×7″ Rear Factory Speaker Replacement Kit For 1999-2002 Ford Expedition

Alpine S-S57 460W Max (150W RMS) 6×8/5×7″ Type S Series 2-Way Coaxial Car Speakers

IT FITS IN MOST COMMON APPLICATIONS

To meet the needs of the most common applications in speaker replacement today, we’ve introduced a 5×7-inch component set to offer newer domestic trucks and cars the ability to upgrade the sound quality of their vehicle. With its innovative technology, this component set makes it a simple solution to getting Alpine sound in many of these vehicles on the road today.

INCREASED DRIVING POWER AND CONTROL

The S-Series speakers have a large voice coil. The 6.5-inch and 6×9-inch models have a 35-mm voice coil, and this large voice coil size increases their driving power and control of the motor. The S-Series speakers are the first in the industry to use CFRP (Carbon Fiber Reinforced Plastic), a very lightweight yet rigid material. The edges are naturally weaker than the center on a standard, off-the-shelf oval cone due to the elongated shape. Since the CFRP material is directional, it can be manipulated during the molding process to strengthen the areas of the cone that are generally weak. The result is rigidity throughout the cone that delivers accurate and efficient performance. The ability to manipulate the CFRP material during molding is currently exclusive to Alpine and the S-Series speakers. Alpine has three patent-pending procedures in support of this innovative manufacturing process.