RC-1 Boost Sound Isolation Clip

RC-1 Boost Sound Isolation Clip
RC-1 Boost Clip Applied on Standard Hat Channel RC-1 Boost Clip Applied with Standard Hat Channel on Standard Wood Framing

Sound Isolation Clips are used in conjunction with resilient channels for a low cost method of reducing sound transmission. This assembly decouples the drywall from the structure to prevent sound from traveling through, adding up to 7 STC points. The RC-1 Boost™ clip is designed for Wood Framed and Steel Framed Walls and Ceilings and is Classified UL rated.


Special Quantity Discounts begin at 500 clips. See below for details. 

Price: $0.82
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Made in USA
Quantity Price
500-999 Items $0.74
1000+ Items $0.69

Applying RC-1 Boost Sound Isolation Clips to your walls or ceilings can result in both STC and IIC gains of 7 points and aid in creating a sound isolated environment. See Product Data tab for more information on how RC-1 Boost Clips work.

Product Features: 

  • Classified UL Listed
  • STC rating: 58
  • IIC rating: 50
  • Works with standard Resilient Channel to reduce sound transmission.
  • For wood and steel applications
  • Designed for new or retrofit construction
  • Simple and affordable installation
  • See Product Data Sheet and Product Testing Sheet for more information

Applications: RC-1 Boost clip and screw to be applied on every stud/joist. Design load of 18 Lb. per isolator. Each RC-1 Boost clip can support up to two layers of 5/8" gypsum board when spaced no more than 16" x 24" oc. 

Installation: Wraps around the screw edge of standard resilient channel. RC-1 Boost Clip is screwed to the framing using the provided RC-1 Boost Screw.

For detailed usage see our How to Soundproof Article.

Need help planning your soundproofing project? You can always call our office at 845-388-1200 with any installation questions that arise. Feel confident when placing your order with Trademark Soundproofing, as we are always here to assist you with installation advice and tips. We are the only soundproofing company that is constantly installing the products we sell, so we have the answers!

Product Data

Printable Documents:

Click here to view and print Product Specs/Data Sheets.

Click here to view and print Product Testing Sheets.

Product Specs:

RC-1 Boost Specifications

How it Works:

Resilient channel is a thin, flexible metal channel that is screwed to the studs. By screwing it to the studs using the RC-1 Boost clip and screws, an additional sound barrier is introduced to stop the transfer of sound. Drywall is then screwed to the channel and the flexibility of the channel combined with the RC-1 Boost clips create a decoupled wall.

For more information read our Decoupling Explained article.

Shipping & Returns

Shipping and Return information is specific to this product page only (not for other products on our site).

  • Shipping:
    • Product is in stock and ships within 1 Business day from the East or West Coast.
    • FREE SHIPPING on orders over $75.00. There will be a flat $14.99 shipping and handling fee on orders under $75.00. - Applies to orders shipped within the USA (excluding Alaska and Hawaii).
    • Ships FedEx Ground.
    • Overnight and Express Shipping is available, please contact us at 845-388-1200.
    • Shipping time varies, see Shipping Information page.
  • Returns:
    • Product can be returned up to 60 days if in brand new condition.
    • A $10 fee will be charged to cover our original shipping cost.
    • Please call or email us to receive an RMA number before returning. No returns will be processed without an RMA number.
    • Return shipping is customer's responsibility. Return address will be provided once return is approved.
    • If you are shipping via USPS (not recommended) do NOT require signature as we will not be able to pick up your package from local post office facility.

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Customers Questions and Answers

1) Joseph K: Hi, I am an acoustical consultant at Ostergaard Acoustical Associates in West Orange, NJ. We are evaluating an architect's recommendation to construct a wall using resilient channels and "boost sound clips". Do you acoustical testing data that show the sound-isolating performance of partitions with and without boost sound clips? We need to quantitatively evaluate the performance of the product before we will recommend its use. Thank you.

Trademark Soundproofing Reply: Hi Joseph. TL test results as follows: TL18-180 STC 47 Wood framed @ 16" oc. Cemco Utility grade RC-1 channel @ 24" oc. 1 layer 5/8" gyp each side. TL18-181 STC 51 Wood framed @ 16" oc. Cemco Utility grade RC-1 channel with RC-1 Boost @ 24" oc. 1 layer 5/8" gyp each side.

2) Shaun R: Hello, How many of these clips do I need for each RC-1 (RESILIENT CHANNEL) - I bought a 32 PACK several months ago for a basement finishing project which is currently underway...

Trademark Soundproofing Reply: 1 clip for every 2 feet.

3) Daniel Kimsey: I plan on using 2 layers of 5/8" drywall in a wall (and likely ceiling project) Can the RC-1 Boost clips be used with single-leg resilient channels or should I use 2x the clips and use double-leg resilient channels instead?

Trademark Soundproofing Reply: These can be used both ways. However it is mainly meant to be used with the 1 legged channel. If you are using the hat channel than I would recommend that you switch to a resilient channel which will give you better performance.

4) Marsha: Hello, I would like to use these clips with 1-legged resilient channels for a ceiling application. The existing floor joist are spaced 16" on center. Do I need to attach the clip/channel at every joist or every other joist (32")? Also, if it is every other joist should I stagger the clip placement?

Trademark Soundproofing Reply: These clips are not the same as resilient sound clips. These are used in every hole on the Resilient channel that you will be placing a screw through. How you space your resilient channel is up to your contractor.