About the Stinger Roadkill RKFR5768 FAST Rings

Get better sound from your speakers
Get better sound from your speakers
You bought some nice 5"x7" or 6"x8" speakers for your vehicle, so why not make sure they sound their best? Stinger's Roadkill FAST Rings RFKR5 kit consists of six pieces — two centre pads, two inner rings, and two outer rings — which install on the speaker frame and behind the speaker, minimizing resonances and improving midbass response.
1, 2, 3…better sound
The centre pad mounts behind the speaker to absorb reflections from hard surfaces inside the car door or most other locations. The inner ring serves as a gasket for mounting the speaker to the metal surface. The outer ring mounts just outside the surround at the outer edge of the speaker, to couple the speaker to the door panel opening.
Stinger's Roadkill FAST Rings isolate the speaker from the mounting surface and the factory door panel to help eliminate unwanted vibration and noise from the door panels, while increasing midbass response. You'll have to trim FAST Rings for proper fit.
Product highlights:
- kit includes two center pads, two inner rings, and two outer rings
- foam baffles cut down on unwanted resonance
- self-adhesive foam simplifies installation
- increases midbass
- warranty: 1 year
- MFR # RKFR5768
What's in the box:
Stinger Roadkill RKFR5768 FAST Rings owner's manual
- 2 Adhesive backed center pads
- 2 Adhesive backed inner rings
- 2 Adhesive backed outer rings
- Installation instructions on packaging
Reviews (15)
Customer reviews for Stinger Roadkill RKFR5768 FAST Rings
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Average review:
4.5 out of 5 starsCustomer photos
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More details on the Stinger Roadkill RKFR5768 FAST Rings

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Features
Overview: Each Fast Ring is three concentric foam ovals, a center pad, an inner ring, and an outer ring. They mount around a speaker to improve sound quality. Typical mounting is in a door, but they can be used in almost any speaker location.
Center Pad: The center pad mounts to the inside of the outer door panel, directly behind the speaker. This pad absorbs much of the speaker's back wave, helping prevent interference with the front wave you want to listen to, and reduces vibration. Dimensions:
- Length: 6-7/8"
- Width: 5"
- Depth: 2" (can be trimmed to fit)
Inner Ring: The inner ring is sandwiched between the speaker and the mounting surface, acting as a gasket to prevent low frequency (bass) cancellation. Dimensions:
- Length:
- Outer: 7-5/8"
- Inner: 6-7/8"
- Width:
- Outer: 5-1/2"
- Inner: 5"
- Depth: 2" (typically trimmed to 1/4")
Outer Ring: The outer ring mounts to the top of the speaker and is sandwiched between the speaker and door panel. This ring directs all the speaker output into the cabin, and acts as a barrier to interference from rear waves trapped inside the door panel. This ring also helps prevent the door panel from vibrating. Dimensions:
- Length:
- Outer: 8-3/4"
- Inner: 7-5/8"
- Width:
- Outer: 6-1/2"
- Inner: 5-1/2"
- Depth: 2" (can be trimmed to fit)
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This is the difference between sound and good sound. These with sound dampening material make any system sound great!
Jesse from Waltonville, IL