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Synergistic Research Foundation SX Subwoofer Cable

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Original price From $549.00
Original price
$549.00
From $549.00
Current price $549.00

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Length: 2M
Terminations: RCA
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About Synergistic Research Foundation SX Subwoofer Cable

Synergistic Research Foundation SX Subwoofer Cable Key Features: 

  • Pure Silver Air Strings & Silver Matrix Tricon Geometries – Enhances subwoofer performance and improves integration with main speakers for deeper, more controlled bass.
  • Extended High-Frequency and Soundstage – Provides greater holographic realism and detail while maintaining natural tonality.
  • SRX-Derived UEF Compound & High Voltage Conditioning – Lowers noise floor and refines dynamics, delivering exceptional resolution and musicality.
  • Included Gold & Purple Carbon Tuning Discs – Allow custom voicing to optimize performance for any system or run clean for a balanced signature.

Product Description: 

Foundation SX Subwoofer cables feature pure silver monofilament Air Strings and Silver Matrix Tricon Geometries, engineered to enhance subwoofer performance and improve integration with main speakers for deeper, more impactful bass. Listeners also benefit from increased high-frequency extension and an expanded soundstage for greater holographic realism. To surpass the performance of the original Foundation subwoofer cables, these cables incorporate a new Long Duration High Voltage Conditioning Process and UEF Compound first developed for the SRX cable loom. Each cable includes UEF Carbon Tuning Discs, allowing users to custom-voice the cables for an ideal system match. They are sold with a no-risk, money-back guarantee through authorized Synergistic Research dealers.

Quantum Tunneling—SRX Long Duration High Voltage Conditioning

First developed for the flagship SRX series, the new high-voltage conditioning process uses an extended sweeping frequency plot applied over long durations. During development, dozens of frequency combinations were tested before arriving at the ideal formula, and a new Tesla Coil was engineered to manage the heat generated during these extended sessions. The result is a conditioning process that delivers holographic realism and timbral accuracy well beyond what was possible with the earlier Tesla Coil protocol.

Included Carbon Tuning Discs—Tune to Perfection

Included with Foundation SX and SR30 interconnects, speaker cables, and power cables, Carbon Tuning Discs (\$199.95 MSRP) originate from the Atmosphere SX Loom, where they are strategically placed inside cables to help shape the SX sonic signature. Built on Synergistic Research’s patented UEF technology, each disc is infused with a specialized UEF compound that interacts with surrounding EM fields to elevate performance. The conductive carbon fiber structure amplifies this interaction, further enhancing the effect. Gold Carbon Tuning Discs enrich harmonic density while adding clarity for a more holographic and lifelike soundstage. Purple Carbon Tuning Discs, treated with a different UEF compound, extend clarity and soundstage openness even further than Gold.

Specifications: 

Conductors

2 each RCA, 4 each XLR, and REL Spec Silver Air String; 99.9999% pure monocrystalline silver

Number of Conductors

4 separate conductors RCA / 8 separate conductors XLR

Dielectric

Air (sealed)

Shielding

Silver Braid - Quantum Tunneled

Connectors

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

Build Notes

8 (RCA) / 12 (XLR) point-to-point hand soldered connections

SRX Matrix Shielding

UEF coating with Graphene applied directly to connectors; reduces noise floor, allows purer signal transfer with more warmth and detail

Silver Solder

4%

Hand Build Time

2 hours

SRX Quantum Tunneling

1,000,000 volts applied to connections at specific frequencies/pulse modulations; improves electron flow, low-level information transfer, and realism

Secondary UEF Treatment

Blue treatment originally developed for SR Blue Fuses

Burn-in

5 days, 2-step process

Manufacturing

Hand crafted in California factory

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