Without a doubt, Rockford Fosgate's P1650 6-1/2" speakers are powerful upgrades from the speakers that came in your car. Using an injection-moulded mineral-filled polypropylene cone, the P1650's woofer delivers impressively accurate sound. Rockford Fosgate's signature VAST surround technique also expands the surface area of the cone, giving you better bass response than comparable speakers. But no matter how heavy the bass gets, the P1650's dome tweeter provides clear, extended highs for a rich full-range sound.
Do you own a European car like a VW, Citroen, or Vauxhall? Rockford Fosgate designed these speakers with you in mind. Rather than only providing rigid screw holes that may not match up to your factory speaker opening, the Flex 2 Fit basket design uses slots on the outer edge of the speaker basket for an easier match.
Rockford Fosgate P1650 owner's manual