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Kicker 47KBRW12 ReFLEX™ 12" passive radiator — big bass without a ported enclosure

Item # 20647KBR12

Get the punch of a ported box in a small sealed enclosure that can fit in more places in your vehicle.

Get the punch of a ported box in a small sealed enclosure that can fit in more places in your vehicle.

Item # 20647KBR12

In stock
C$99.95 each

About the Kicker 47KBRW12 ReFLEX™

Dave Delamere

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 12" subwoofer, Kicker's 47KBRW12 12" 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. Kicker recommends using a subwoofer with a recommended box volume of 0.7 cubic feet, such as a Kicker CompRT subwoofer.

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 12" subwoofer, Kicker's 47KBRW12 12" 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. Kicker recommends using a subwoofer with a recommended box volume of 0.7 cubic feet, such as a Kicker CompRT subwoofer.

Note: This passive radiator will not produce sound by itself. It must be paired with a subwoofer in an enclosure.

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Product highlights:

  • 12" ReFLEX™ passive radiator
  • works in a dual 12" enclosure
    • works with a 12" sub in 0.7 cubic feet air space
    • tuned to 34 Hz
  • grille not included
  • warranty: 1 year
  • MFR # 47KBRW12

What's in the box:

  • One 12" Passive Radiator
  • 4 Adhesive backed screw covers
  • Quick-Start Guide (English/ Spanish/ German/ French)
  • Template on box

Customer reviews for Kicker 47KBRW12 ReFLEX™

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5.0 out of 5 stars
7 reviews

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Features

Overview: This passive radiator is designed to pair with an 12" Kicker CompR or CompRT subwoofer in a 0.7 ft³ enclosure.

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Customer Q&A

5 questions already asked

Q
Need to know the xmax of this in order to calculate box volumes and if I need one or 2passive?
scotty  Oct 13, 2022
1 answer
A
Kicker does not provide that spec. They recommend using a subwoofer that requires a 0.7 cubic foot sealed enclosure with this passive radiator.
thomas  Oct 14, 2022 (Staff)
Q
Is this a basic sub speaker? I'm a bit confused. I have an old sub box and I need to replace the sub in it. Its deep and isn't ported. I'm not clear on what "radiator" means...
michael  Jul 24, 2022
1 answer
A
This is not a subwoofer. It is a driver that moves based on the movement of a subwoofer. It "radiates' to produce audio because of the movement of an actual subwoofer. We have advisors that can recommend a replacement subwoofer that will work well in your box and with your amp. They can be reached by calling 1-800-324-9695 to get this personal recommendation
jason  Jul 24, 2022 (Staff)
Q
The recommended box size of 0.7 is that for the passive radiator or is that for the entire box including say with a compr? Or is it 0.7 + the size of the compr too?
aaron  Sep 13, 2020
1 answer
A
Hi Aaron. The specs listed include the use of a subwoofer that works with a sealed enclosure of 0.7 cubic feet of airspace, along with this Kicker passive radiator. The Kicker CompRT 43CWRT122 is the subwoofer that is recommended to be used along side of the 47KBRW12 ReFlex passive radiator.
jessica  Sep 25, 2020 (Staff)
Q
Can these be used with most any sub as long as the sub is suitable for a ported enclosed?
justin  Sep 12, 2020
1 answer
A
This passive radiator is designed to pair with an 12" Kicker CompR or CompRT subwoofer in a 0.7 ft³ enclosure
thomas  Sep 24, 2020 (Staff)
Q
Mounting depth for these? im looking to purchase two for a down fire sub box
mancel  May 18, 2020
1 answer
A
Roughly an inch... however leave yourself some extra room so them dont rub when firing the rubbed is so soft it takes almost nothing to rub a hole in one
cody  May 20, 2020
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