BMW 3, 5 Series X1 X3 X5 Alpine S-S40 4" 10cm 2-Way Front/Rear Door Speakers Fitting Kit

Refresh your ride with Alpine

Alpine's been building quality car speakers for decades, and their latest S Series S-S40 4" speakers are no exception. If you've been living with anemic factory sound, this step up in range, tone definition, and power handling will make you giddy just about every time you hop behind the wheel. And if you're really jonesing for a boost in sound quality, hook them up to a powerful aftermarket stereo or amp for increased performance.

Worthy materials

Alpine's carbon-fiber-reinforced plastic woofer cones provide next-level sturdiness but are also agile enough to handle the complexities of the midrange. Their high amplitude multi-roll rubber surround contributes to reduced distortion for a cleaner sound, while silk dome tweeters give you all the precise details that bring out the character of the instruments and vocals. If you've never experienced Alpine sound quality, these speakers are a great place to start.

Grilles are not included; the factory grilles should be suitable for most applications.

Product Features:

• 4" Type S Series 2-Way Car Speakers
• Power Handling:
• Peak: 280 watts per pair / 140 watts each
• RMS: 90 watts per pair/ 45 watts each
• Poly-mica cone woofer
• Rubber surround
• 3/4" Silk dome tweeter
• Optimized air-flow design
• Stamped steel basket frame
• Swivel-mount tweeter
• 4 ohms impedance
• Square-wire short voice coil
• Low distortion strontium magnet
• Top-mount depth: 2"
• 1-year Manufacturers Warranty