Share this Product with your Friends


The Crystal Pro speaker kit comes with an industry leading 3 layer back wave dispersion pad, made from an aluminium foil which will properly disperse those unwanted back waves and won?t hold water and rot like many other foam alternatives. The included closed cell foam rings come in a variety of sizes making them suitable for use in virtually any installation. Sealing drivers to door trims, spacers to door skins, holding tweeters in place, your imagination is the limit!


  • Designed for the absorption of speaker back wave distortion for high quality sound.
  • Seal drivers to door trims and spacers to door skins.
  • Industry leading 3 layer back wave dispersion pad.
  • Multiple size foam rings included to suit most common speaker installation size requirements from 200mm to 45mm.
  • Closed cell waterproof foam material, will not absorb water or retain moisture.
  • Includes enough material for the installation of a pair of speaker.