Synergistic Research Foundation XL (12 AWG) AC Power Cable - Buy 2 Get 1 Free

Now through December 31st, 2025, buy two Foundation XL Power Cables and get one free while supplies last. Simply add all 3 cables to your cart, and the discount will be applied automatically.

Synergistic Research Foundation XL (12 AWG) AC Power Cable Key Features: 

• Doubled 6N Pure Silver Air Strings – Delivers quicker, more resolving performance with enhanced dynamics and transient response, maintaining a smooth, fatigue-free listening experience.
• SRX XL UEF Matrix Shielding with Graphene – Reduces noise floor and signal constraints for cleaner, more transparent audio.
• SRX XL High Voltage Conditioning – Frees electron flow at the molecular level for greater openness, accuracy, and musical realism.
• Carbon Fiber UEF Tuning Discs – Refines harmonic texture, soundstage clarity, and system transparency for heightened detail and dimensionality.
• Re-engineered Cable Geometry – Optimized design ensures natural timbre and improved musical expression over the previous generation.

Product Description: 

Building on insights gained from the flagship SRX XL cable line, the new Foundation XL power cables deliver a substantial performance upgrade over the Foundation SX series while remaining affordably priced. Though an evolution of the Foundation SX, the Foundation XL has been completely re-envisioned, incorporating the same advanced improvements developed for the SRX XL series.

Each cable doubles the 6N pure silver Air Strings, producing music with greater immediacy, resolution, and dynamic expression, while enhancing transient response without causing listening fatigue. Shielding benefits from the SRX XL UEF compound, and all cables undergo the same SRX XL High Voltage Conditioning process used for the flagship line.

The result is improved dynamics, a more natural timbre, and a lower noise floor, allowing musical details to emerge with greater smoothness and realism than the previous generation.

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: