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A QuietBox is used to isolate sound from passing through your recessed lights. The QuietBox is designed to maintain the acoustic rating of your ceiling while allowing you to use attractive lighting in your room. There are other ways to reduce sound transmission through your recessed lighting, but this method is based on sound principles with a consistent theme of decoupling, damping, and mass.
The QuietBox 6" version is made to fit the Halo 6" H7ICT and Halo 6" H7ICAT recessed lighting housing. The QuietBox 4" version is made to fit the Halo 4" H99ICT recessed lighting housing. These models are the basic recessed lighting housing with connector arms (for new construction) that you would find at any Home Depot or Lowe's hardware store.
The exterior frame of the QuietBox is 3/4" MDF and the interior layer is 1/2" drywall. Sandwiched between these two materials is the renowned Green Glue. We have applied Green Glue at a rate of about 1 tube per 10.6 square feet which is in line with what we call the Supreme application level of Green Glue. Otherwise known as 3 tubes per 4' x 8' sheet. The angles of the MDF box are sealed with Green Glue Sealant and the angles of the drywall layer are also sealed with Green Glue Sealant. A hole is pre-drilled to allow for electrical wiring to pass through and a small piece of TotalSeal Putty Pad is included with the box to seal the hole after passing the wire through during installation. Installation of the QuietBox requires the use of (2) RSIC-DC04 clips to attach directly to the joists. These clips are included with each QuietBox as well.
This product is manufactured in house by the employees of Sound Isolation Store and is available exclusively by Sound Isolation Store. With this we guarantee the quality of construction including the materials used to construct the box, the methods used to construct the box, and the ease of installing the QuietBox. As long as you use the specified Halo recessed light then you will be successful.
Option To Include A Light With Your QuietBox
Above you will notice an option to include a light in your QuietBox. For this we actually include a fully functional recessed light with the extension arms removed and prepared for installation in the QuietBox. Your price for the customized version of the Halo light is actually about the same as what you can buy the light for from Home Depot or Amazon. This makes installation quicker and extremely simple.
The QuietBox definitely does allow you to use recessed lighting in your ceiling without reducing the acoustic integrity of your ceiling. The QuietBox is made of 3/4" MDF which is a very thick and dense material that provides a significant amount of mass to improve isolation. The product that really helps the QuietBox isolate sound is Green Glue. The Green Glue is applied liberally at a rate that is the equivalent of 3 tubes per 4' x 8' sheet of material.
If you are using double layer drywall and Green Glue on your ceiling then the QuietBox will perform as well as your ceiling. If you are installing sound clips on your ceiling then the inclusion of the RSIC-DC04 clips will help maintain a consistency in your theme of decoupling. In terms of sound isolation, think of the QuietBox as an extension of your ceiling. The level of performance the QuietBox provides will in no way negate the isolation performance of your ceiling.
Competing Recessed Light Isolation Products
There are other products on the market for dealing with sound isolation and recessed lighting. These products will not maintain the acoustic integrity of your ceiling for a couple reasons. First, the competing products are not made for a specific type of recessed light. The problem with this is they don't offer a tight seal around the entire light housing, but rather 'sit' on top of the attachment arms of the housing. This leaves a large gap around the entire perimeter of the light for sound to pass right through.
Second, the competing products do not provide mass and damping, but rather just absorption. Absorption is an important part of sound isolation, but it will not isolate your lighting properly. A product designed for isolating recessed lighting must add significant mass and damping for any real improvement in isolation. If the product only provides absorption then you may as well just drape insulation over the top of the light. Keep this in mind when deciding which product you choose to isolate your recessed lighting. You will only have one chance to choose the right product so it is important to make the right choice from the start.
Our QuietBox is attached directly to your joists using RSIC-DC04 clips. These RSIC-DC04 clips are included with each box and very easy to attach to both the joist and the QuietBox. The attachment of the QuietBox is very simple, but does require electrical work to bring power to the recessed light. We can only provide installation help in regards to the box itself. Please click the link below to review the steps to installing a QuietBox.
Read our detailed QuietBox
installation guide
| Box Material: | 3/4" MDF |
| Interior Material: | 1/2" drywall |
| Damping Adhesive Within Layers: | Green Glue Compound |
| Sealant: | Green Glue Sealant |
| Sealant For Wiring: | 1" x 7" strip of TotalSeal Pad |
| Attaching Device: | (2) RSIC-DC04 |
Recessed Lighting Specified For This Box
We chose the Halo line of lighting products because of the affordability and availability nationwide. Halo products are available at almost every electrical wholesale supply house and every Home Depot or Lowe's in the United States.
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For 6" Lighting: Halo 6" H7ICT and Halo 6" H7ICAT. If you do not have the Halo 6" light that we have specified then make sure your 6" light fits the specifications of the light to the left. The QuietBox allows for 8" of height within the box. Allow for 1/2" of this 8" to remain a gap between the back of the light and the interior layer of drywall. |
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For 4" Lighting: Halo 4" H99ICT If you do not have the Halo 4" light that we have specified then make sure your 4" light fits the specifications of the light to the right. The QuietBox allows for 8" of height within the box. Allow for 1/2" of this 8" to remain a gap between the back of the light and the interior layer of drywall. |
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The picture to the right is the style of Halo lighting you will need to purchase to make our QuietBox work. Do not purchase remodel recessed lighting-it will simply not fit our standard box. If you would like a custom box built for your measurements then please contact us on sizing information and the number of boxes needed. We have no problem working within your requirements. |
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This product ships from Idaho within 2 business days. If delivery time is crucial please confirm delivery time with us before ordering.
| Idaho: | Order by 3 PM Pacific Time for same day shipping, depending on stock |
Estimated Delivery Time For This Product



