Custom Design iRAP isolation platform
With the Custom Design iRAP isolation platform, resonances are converted into heat by a patented polymer based on the constrained layer damping principle.
HiFi Isolation Platform iRAP ( Isolation-Resonance-Absorbing-Platform ) are manufactured from Custom Design’s Acoustic Steel using our unique constrained layer dampening system.
The HiFi Isolation Platform iRAP are designed to convert and dampen resonance energy vibration. The iRAP’s isolate hifi equipment from the supporting system with a patent polymer which converts unwanted resonance energy and that generated by the support and the hifi equipment. It does this through a patented polymer which is sandwiched between 2 sheets of steel (constrained layer dampening). This converts the resonance to negligible heat by the creation of friction.
The resulting improvements are significant and the versatility of the iRAP enables them to be adapted to any support system, only requiring 20mm of height.
Available in several sizes as standard to fit most equipment (custom sizes available on request), the iRAPs offer magnitude in clarity and separation compared to your standard Hi-Fi shelf support. The result an inky blackness and depth to the bass, with a significant improvement in the dynamic range and detail. All combined the iRAPs make a perfect upgrade for any Hi-Fi system.
Custom Design sources all cardboard packaging from only PEFC or FSC certified companies. 76% of the cardboard packaging has been manufactured from recycled material which can be 100% recycled.
For best performance please ensure the supporting feet of your equipment are as close as possible to Isolation points of the iRAP (corners).


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