Kicker 47KBRW8 - 8" passive radiator — big bass without a ported enclosure

Big boom for boxes with low internal volumes

Ports require larger enclosures to be effective and can sometimes produce unwanted noise. When paired with a compatible 8" subwoofer, Kicker's 47KBRW8 8" passive radiator lets you get the punch of a ported box in a small sealed enclosure that can fit in more places in your vehicle. 

• 8" ReFLEX™ passive radiator
• works in a dual 8" enclosure
  • works with a 8" sub in 0.4 cubic feet air space
  • tuned to 49 Hz
• grille not included
• warranty: 1 year