Alpine SS57 5x7" Rear Factory Speaker Replacement Kit For 1999-2002 Ford Expedition

Alpine SS57 5x7" Rear Factory Speaker Replacement Kit For 1999-2002 Ford Expedition Alpine S-S57 460W Max (150W RMS) 6x8/5x7" 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 5x7-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 6x9-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,