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Alpine SPS-400 Item# 18865
4" 2-way 170W Car Speakers
Alpine :: SPS-400 :: $45.00

Sorry, this product is no longer available.

  • Great sounding upgrade speakers at competitive price points
  • Perfect for OEM upgrade, with many sizes to choose from to suit almost any vehicle. New cosmetics look good in your car, and fit easily in your stock
  • Improve the output and sound quality of your vehicle with these highly efficient speaker choices
  • High efficiency design runs easily off of factory or built-in head unit power for an easy system upgrade


  • Stamped Steel Shallow Frame Woofer
  • Shallow Mounting Design
  • High Grade Strontium Magnet
  • Optimized Air-Flow Design
  • Silk Dome Swivel Tweeters
  • 3/4" Wide-Range Silk Dome Tweeter
  • Priced per pair
  • Car speakers are usually sold as a pair unless otherwise noted.
*Warranty: Limited 30 Day warranty.
Limited 30 Day warranty from implies that repairs must be returned to, not the manufacturer. More information can be found in our help section under returns & warranties.

Customer Reviews

5 Star Rating Marshall Fry From Lockesburg, AR
I put these in the back doors of my silverado and my girlfriends silverado...they are great speakers!! and they dont distort:) just make sure you break them in because they dont sound good for the first couple hours of hard hitting songs....but after a day or so you cant beat the sound...even when they are all the way turned up. Definitly a great buy, and onlinecarstereo will get more business from me in the future. You cant beat their prices!!!
5 Star Rating colt 45 From 360
replaced my stock 3.5" with theese 4's amazing sound perfect highs and lows actually are louder then the 6.5s i have
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