Foundation SX Subwoofer Cable

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.

Engineered with audiophile-grade components — premium drivers, hand-matched crossovers, and a hardwood enclosure tuned for natural decay. Every cabinet is internally braced and damped to suppress resonance below the threshold of audibility.

• Custom 6.5" mid-bass driver with paper-pulp cone for transient accuracy.
• Soft-dome silk tweeter with neodymium motor for airy, fatigue-free highs.
• Point-to-point hand-wired crossover using silver-foil capacitors.
• Bi-wirable terminals plated in pure copper.

Place each speaker on its dedicated stand, toed-in toward the listening position. The hardwood enclosure resonates in concert with the drivers — a deliberate, musical interaction rather than a flaw to be eliminated.

Connect to a quality amplifier using bi-wired speaker cable for the most transparent presentation. Allow 50–100 hours of break-in for the drivers and crossover capacitors to settle into their final voicing.