AcoustiPack EXTRA Sheet PC Soundproofing Insulation

Price: $21.95 - Out of Stock.
- +

AcoustiPack™ EXTRA Sheet PC Soundproofing Kit (APEXTS)

The new range of AcoustiPack™ sound-proofing kits has been designed with our customer's pockets and greater flexibility in mind! As a result, we have introduced AcoustiPack™ EXTRA Sheet (7mm), which is a single large sheet of our latest generation 3-layer acoustic material as found in AcoustiPack ULTIMATE. This sheet is ideal if additional materials are required for a particular project, and the space allows for a 7mm sheet to be added. This product makes our range of acoustic material kits more flexible, and can help to save money and waste when an entire kit, such as AcoustiPack ULTIMATE or AcoustiPack LITE is not necessary.

AcoustiPack™ EXTRA Sheet (7mm). Image shows a single black sheet of acoustic materials. Image also contains icons reading: patent pending, new improved acoustic performance, multi-layer and RoHS Compliant.

AcoustiPack™ EXTRA Sheet (7mm).

Overview - AcoustiPack™ EXTRA Sheet (7mm)

AcoustiPack™ EXTRA SHEET
Product Code: APExtS
What's In the Box?
NEW3-Layer Sheets: 1 (7mm ±10%) 1-Sheet
TOTAL Number of Sheets: 1
Product User Instructions: Included
Pack Dimensions
Sheet Dimensions: (WxD, ±1%) 457 x 431mm (18 x 17")
Total Sheet Area: 0.197m² (2.12ft²)
Other Details
Flammability Certificate: UL94-V0 (UKAS Accredited)
RoHS Certified YES

Material Features

These soundproofing materials have been designed to achieve maximum acoustic attenuation over a broad frequency range:

  • High Transmission Loss

    High transmission loss is the composite material's ability to impede airborne noise.

  • High Noise Reduction Coefficients

    High noise reduction coefficients is the composite material's ability to absorb airborne sound energy with minimal reflections.

  • Damping

    Damping is the composite material's ability to attenuate structure-borne vibration on metals and other substrates thereby reducing reradiated noise.

AcoustiPack ULTIMATE 3-Layer Materials

In our latest generation of 3-layer composite (Patent Pending), the dense acoustic barrier layer has been 'suspended' away from the substrate in the center of the acoustic foam. The construction layering is like this: (noise source) acoustic foam -> acoustic barrier -> acoustic foam (then the substrate, which is usually a metal sheet panel).

Image shows the 3 layer acoustic material design

AcoustiProducts 3-layer acoustic material design.

Sound energy first hits the upper foam surface, which is similar to the 2-layer construction, in that it is a low-reflective soundproofing material that is particularly effective at absorbing high frequencies. The sound energy then encounters the central suspended barrier layer, which is decoupled from the substrate. This high-density high-mass layer acts as an acoustic barrier mass to the transmission of energy through the material. The 3rd layer of foam acts to suspend the barrier layer a small distance away from the substrate. We have found from both small scale impedance tube and larger scale reverberation chamber acoustic tests that the 'suspended' central acoustic barrier effectively increases the absorption of low frequency noise (<1kHz). This may well be a result of the 'mass-spring effect', where low frequency energy is absorbed by the sound 'moving' the layer when it is excited by certain resonant frequencies.

Image shows the suspended barrier layer in the center of the 3-layer 7mm acoustic composite use in this product.

The 3-layer materials are attached by a supported self-adhesive directly to the substrate, and have a damping effect on panel vibrations. (Hit the side of your PC once fitted, and you will hear a dull 'thud' sound).

The 3-layer materials in the AcoustiPack™ kit range are 7mm thick. We also manufacture these composites up to 13mm thickness (and over if required ) for manufactures and OEMs. For example, they have been very successfully used in servers and server cabinets, and tested by many different organizations all over the world since they were first developed.


Large PC case, powerful PC case, gaming PC case or pedestal server case.

This pack is suitable for any PC.

Perhaps best suited where there is enough room to fit a sheet of acoustic materials that is 7mm thick. Best fitted directly opposite a noise source, such as adjacent to the CPU fan on the inside of the case side door panel, or on the floor directly below a noisy HDD cage.

For more technical and installation information please visit the Acousti Products US website.

Acoustic Materials manufactured in the USA.


Please take care to read the installation recommendations before installing this product. These materials are installed at the installer's own risk.

If you are a reseller or a system builder we offer special pricing on bulk orders of this product. Contact us at or call Toll Free (877) 205-2020 for more information.