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Synergistic Research Foundation XL Ethernet Cable

See more from Synergistic Research
Original price $1,475.00 (53% Off Est. Retail)
Original price From $695.00
Original price $1,475.00 (53% Off Est. Retail)
Current price $695.00
From $695.00
Current price $695.00

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About Synergistic Research Foundation XL Ethernet Cable

Synergistic Research Foundation XL Ethernet Cable Key Features: 

  • SRX XL UEF Matrix Shielding with Graphene – Lowers the noise floor while preserving dynamics and transparency for cleaner, more detailed sound.
  • SRX XL High Voltage Conditioning – Enhances electron flow at the molecular level, improving tonal accuracy, dimensionality, and high-frequency clarity.
  • Doubled 6N Pure Silver AirStrings – Produces quicker, more resolving cables with greater texture, dynamics, and smooth, fatigue-free listening.
  • Purple and Gold Carbon Tuning Discs – Allow system-specific voicing to optimize harmonic texture, soundstage depth, and musical realism.
  • Handmade in California Using Advanced SRX XL Technologies – Ensures consistent high-quality construction with flagship-level performance at a more accessible price point.

Product Description: 

At its core, Foundation XL is a refined, scaled-down version of SRX XL—handmade in Synergistic Research’s California factory using the same core technologies first introduced in the flagship cable loom.

Foundation XL applies the SRX XL UEF Compound to its matrix shielding, lowering the noise floor without limiting dynamics or transparency. Each cable is then treated with the same long-duration, high-frequency conditioning process developed for SRX XL, enhancing dimensionality, tonal accuracy, and high-frequency clarity.

Included with every cable are Purple and Gold UEF Carbon Tuning Discs, allowing users to tailor the sound to their system and preferences—or run them without tuning.

Foundation XL brings SRX XL’s advanced technologies to the Foundation series, offering the highest performance-to-price ratio of any cable Synergistic Research has ever produced.

UEF Matrix Shield with Graphene SRX XL Matrix Shielding

In creating the flagship SRX XL series, Synergistic Research developed a new UEF compound that advances its Matrix Shielding technology, reducing the noise floor even further while minimizing the signal constraints typically associated with shielding. This state-of-the-art SRX XL Matrix Shielding is now applied to the Foundation XL line, delivering a substantial performance upgrade over the previous Foundation SX. To further refine musicality, Carbon Fiber UEF Tuning Discs—engineered specifically for both Foundation SX and Foundation XL—enhance noise cancellation, preventing high frequencies from sounding harsh or fatiguing.

Enhanced Cable Geometries—6N Pure Silver Airstrings, Multiplied

While voicing the Foundation XL, Synergistic Research discovered that doubling the 99.9995% pure silver Air Strings produced cables that are quicker and more resolving, with greater texture and body. This refinement enhances dynamics and transient response while preserving a smooth, fatigue-free presentation.

Quantum Tunneling—SRX XL High Voltage Conditioning

The SRX XL High Voltage Conditioning process represents Synergistic Research’s most advanced treatment, applying 1,000,000 volts of electricity at carefully chosen frequencies and pulse modulations over extended durations. This creates pathways within the conductor material and contact points at the molecular level, enabling freer electron flow. Building on the original SRX process, the XL version introduces longer duration sweeping frequency plots and enhancements to the Tesla Coil, resulting in an even more open and accurate sound. Foundation XL cables benefit from this same conditioning method, a key factor in their substantial performance gains and voicing that approaches the flagship SRX XL series.

Included Carbon Tuning Discs—Tune to Perfection

Foundation XL interconnects, speaker cables, and power cables include Carbon Tuning Discs derived from the Atmosphere SX loom where they help define the series’ signature sound. Each disc incorporates patented UEF technology and is treated with a specialized UEF compound that interacts with EM fields to elevate performance. Constructed from conductive carbon fiber, the discs intensify this interaction, further improving system transparency and refinement. Gold Carbon Tuning Discs enrich harmonic texture while adding holographic realism, while Purple Carbon Tuning Discs extend clarity and soundstage openness even further for heightened detail and dimensionality.

Specifications: 

Conductors

8 each UEF CAT 7 MKII

Conductor Material

23 gauge solid copper MKII

Dielectric

Solid Polyethylene

Maximum Frequency

500 MHz

Shielding

Silver Mylar - Quantum Tunneled Ground Plane Technology

Geometry

4 twisted pair

Signal Direction

Listened for signal direction before build

Hand Crimped Connections

16 point-to-point

SRX XL Matrix Shielding

UEF coating with Graphene applied to connectors for lower noise floor and purer signal

SRX XL Quantum Tunneling

Cable treated with 1,000,000 volts at specific frequencies to improve electron flow and low-level information transfer

Secondary UEF Treatment

Blue Treatment originally developed for SR Blue Fuses

Hand Build Time

1 hour

Burn-in

5 day, 2-step process

Manufacturing

Hand crafted in California factory

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