Burson FRA Enclosure

The Bank Vault

Sometimes called the Vault by our customers, the 6mm Resonance Free Aluminum (RFA) enclosures are constructed from precision-machined panels. Eight stainless steel bolts hold the enclosure together so it’s virtually indestructible.

Resonance Free 6mm Aluminum Enclosures

We took great care to ensure the thickness of each wall varied from the others to increase the mechanical damping factor. The RFA enclosures display superior mechanical noise rejection (internal and external) compared to conventionally folded-steel enclosures used by many audio manufacturers.

Optimizing Idle Current

The geometry of the case and the precision of the enclosure’s build allows the entire case to disperse heat very evenly so it acts like a large heat sink, something a steel-folded or thinly-built aluminium case can’t match. The enclosure removes any need for big, unattractive heat sink fins and allows our components to be set at a high idle current. The results are lower distortion, higher output and improved dynamics.