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SRA Virginia Class Isolation Base

SRA Virginia Class Isolation Base

SKU: Virginia ClassSRA
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Product Description

The Virginia-Classae Reference isoBASE represents a number of things to us at Silent Running Audio. Of course it's our reference product. It's also the culmination of what we've learned over 30 years in the design and manufacture of vibration and acoustical solutions for the aerospace, military, electronics and medical industries.

It's the result of pure passion. Tireless research. 40 patents. And of an absolute unwillingness to settle for anything less than perfection. All of which is applied to a singular purposemaximizing the performance of your components in your audio system.

To that end, each bespoke Virginia-Classae Reference isoBASE is Angstrom Engineered (ae). Exclusive to our Virginia-Class products, this NASA-derived process is implemented to ensure the tight tolerances required to yield peerless performance.

It all starts with a question: What are we designing for? After determining component specifics, every data point is collected, weighed, considered and analyzed.

This includes your component's size, weight, distribution of weight, chassis composition, and other pertinent data right down to the type of footer it features.

Next we collect data about your room. Including, among other things, its dimensions, construction, floor composition and coverings.

Once the electrical, mechanical and acoustical topography of your system is determined, a "build print" is created. A single, dedicated craftsman does the restbuilding every millimeter by hand.

Each jewel-like chassis features a custom-made nanocomposite housing. This creates the ideal coupling path between component footer and isoBASE, enabling it to drain and sink skin-effect vibration.

Under this nanocomposite skin are two of our enormously complex Raft Isolation Systems. Each is encased in its own vacuum and calibrated to single-angstrom tolerances. It's our most reactionary, most effective implementation ever.

Mechanically grounding this to your floor are build-specific leg assemblies. These are made of HY80 high-tensile steel, a material originally developed for the hulls of U.S. nuclear submarines.

The legs are drilled and filled with build-specific damping compound, then coated with a textured skin-effect-reducing ceramic-based damping material. The footers are then fitted with internally damped 18-8 stainless-steel cones which are, in turn, fitted with 18-8 adjustable stainless-steel spikes.

All this gives your audio components the ultimate platform from which to launch a level of performance you never even imagined. Welcome to the sonic truth. Welcome to Virginia-Classae Reference.


All orders are processed within 48 hours from date of order.

We offer Free Ground Shipping on all orders regardless of size.  

  • If you would like to receive your order quicker you can request Express shipping during Check-Out in the Comments section.  Additional charges will apply.
  • In-stock items are shipped from our Vancouver warehouse and will reach major Canadian cities in 5-7 business days.
  • Items not in stock will either ship from one of our manufacturer partners' warehouses or in rare cases first must be sent to Vancouver and then to you.  
    • If the expected arrival to you will be more than 7 business days you will be notified by email and at that point you will have the option to proceed or if you cannot wait then order can be cancelled.

Returns Policy 

We will gladly:

  • (a) exchange a product that is not special ordered, or shipped from one of our partner warehouses, for a new product of equal value (product purchased must be unopened)
  • (b) exchange a product if it is defective or damaged for the same product

within 15 days after the product has been delivered to you.

Returns for refund are not accepted.

For an exchange, you must notify us by email at We will acknowledge receipt of your email by reply and assist you in returning the product as identified below. Make sure to send and have your return package post marked within the 15 days after the product has been delivered to you.


  • Headphones may not be returned or exchanged for any reason, only defective units will be replaced for the same model
  • Items that have been opened may not be returned


Notwithstanding the foregoing, you may cancel an order if the product is not delivered to the delivery address on your order form within 30 days of the date your order is accepted.

To cancel, you must notify us by email at We will acknowledge receipt of your email and process the cancellation.

Returns Packaging:

Products returning for exchange must be unused and in their sealed, original factory packaging.

Buyer is responsible for return shipping costs.

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