About the Kicker 47KBRW8 ReFLEX™
Big boom for boxes with low internal volumes
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. Kicker recommends using a subwoofer with a recommended box volume of 0.4 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.
Product highlights:
- 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
- Our 60-day money-back guarantee
- MFR # 47KBRW8
What's in the box:
Kicker 47KBRW8 ReFLEX™ owner's manual
- One 8" Passive Radiator
- 4 Adhesive backed screw covers
- Quick-Start Guide (English/ Spanish/ German/ French)
- Template on box
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More details on the Kicker 47KBRW8 ReFLEX™

Features & specs
Size | 8 -inch | |
Impedance (Ohms) | Passive Radiator | |
Cone Material | Rubber covered plastic | |
Surround Material | Rubber | |
Ideal Sealed Box Volume (cubic feet) | N/A | |
Ideal Ported Box Volume (cubic feet) | N/A | |
Port diameter (inches) | N/A | |
Port length (inches) | N/A | |
Free-Air | No | |
Dual Voice Coil | No | |
Sensitivity |
Not Given | |
Frequency Response | --- | |
Max RMS Power Handling | 0 | |
Peak Power Handling (Watts) | --- | |
Top Mount Depth (inches) | 0 | |
Bottom Mount Depth (inches) | N/A | |
Cutout Diameter or Length (inches) | 7 | |
Vas (liters) | 0 | |
Fs (Hz) | 0 | |
Qts | 0 | |
Xmax (millimeters) | 0 | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year |
Product Research
Features
Overview: This passive radiator is designed to pair with an 8" Kicker CompR or CompRT subwoofer in a 0.4 ft³ enclosure.
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