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Foundation SX Subwoofer Cable



VAT Included


Free delivery in UAE

Foundation SX Subwoofer cables employ Pure Silver monofilament Air Strings and Silver Matrix Tricon Geometries specially engineered to enhance your subwoofer’s performance with improved integration to your main speakers for deeper, more impactful bass performance.


What may surprise many is the marked improvement in high-frequency extension and expanded soundstage for greater holographic realism. And to make Foundation SX surpass our original Foundation subwoofer cables, we added a new Long Duration High Voltage Conditioning Process and UEF Compound first developed for our SRX cable loom.


Lastly, we include UEF Carbon Tuning Discs for you to custom voice Foundation SX subwoofer cables to your system for a perfect match.





2 each RCA, 4 each XLR and REL Spec Silver Air String:

  • Silver Air Strings: 99.9999% pure monocrystal silver conductor
  • 4 separate conductors RCA / 8 separate conductors XLR
  • Dielectric: Air (sealed)
  • Shielding: Silver Braid -Quantum Tunneled


RCA and XLR Connectors:

  • Silver Teflon SR 20 RCA or Neutrik NC3FX-BAG, NC3MX-BAG XLR connectors


Build Notes:

  • 8 (RCA) 12 (XLR) point-to-point hand soldered connections
  • SRX Matrix Shielding: UEF coating with Graphene is applied directly to connectors significantly reducing the noise floor and allowing a purer signal to transfer with less grain providing more warmth and detail
  • Silver Solder: 4%
  • Hand build time: 2 hours
  • SRX Quantum Tunneling: After the cable is completely assembled all connections and cabling are treated with 1,000,000 volts of electricity at specific frequencies and pulse modulations, creating a canal in the conductor material and contact points at the molecular level that allows electrons to flow more freely. This allows the maximum amount of low level information through the conductors and provides for the highest amount of realism in your music
  • Secondary UEF Blue Treatment originally developed for SR Blue Fuses
  • 5 day Burn-in: 2 step process
  • Hand crafted in our California factory
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