Synergistic Research Atmosphere SX Reference REL Spec Subwoofer Cable

Synergistic Research Atmosphere SX REL Spec Reference Subwoofer Cable Key Features: 

• Tricon Silver Matrix geometry with Teflon dielectrics – ensures pristine signal integrity for deeper bass, richer midrange, and more transparent highs.
• SRX Long-Duration High-Voltage Conditioning – delivers exceptional timbral accuracy, three-dimensional presence, and holographic realism.
• Atmosphere SX Tuning Modules (Gold & Silver) – allow users to tailor tonal balance, enhancing musicality, air, and liquid smoothness to suit any system.
• UEF Matrix & Graphene Shielding with Carbon Fibre Tuning Discs – lowers noise floor, reducing fatigue while improving clarity, resolution, and soundstage depth.
• UEF Ground Plane compatibility – connects to a Synergistic Research Ground Block (sold separately) to increase bass control, midrange density, and overall system presence.

Product Description: 

The Atmosphere SX REL Spec cables represent a breakthrough in performance, echoing the transformative impact of SR power cords with their ability to elevate nearly every aspect of a system. Development listening sessions revealed bass that was deeper, tighter, and so powerful that the reference system’s subwoofers had to be turned down. Additional improvements included expanded soundstaging, remarkable air and transparency in the highs, and a fuller, more expressive midrange. These results are achieved through the application of all current SR Technologies, including the two-stage high-voltage treatment first introduced with the Galileo SX cables, along with Atmosphere SX Tuning Modules that allow users to tailor the cable’s voice to their system and preferences. The design also features handmade silver Air String Geometries and the latest Tricon Silver Matrix geometry with Teflon dielectrics. Performance can be further enhanced by connecting the included shield ground to a Synergistic Research Ground Block. For REL subwoofer owners, these REL Spec cables are a must-audition, delivering not only enhanced low-end control but a complete sonic upgrade across the entire system.

UEF Matrix Shield with Graphene Matrix Shielding

The Atmosphere X Series originally explored ways to improve UEF Shielding by positioning UEF Tech at key grid points along cable shields—a method now known as Matrix Shielding. This design lowers the noise floor and enhances clarity. Atmosphere SX refines the concept further by incorporating newly developed Carbon Fibre UEF Tuning Discs, which improve the loom’s ability to cancel noise that could otherwise make high frequencies sound fatiguing. The result is greater resolution, a more holographic soundstage, and improved musicality.

Quantum Tunneling SRX Long Duration High Voltage Conditioning

After perfecting highly natural and holographic cables, Synergistic Research introduced a new high-voltage conditioning process for Atmosphere SX. This process applies a sweeping frequency plot for an extended duration. They experimented with dozens of frequencies in different combinations over a prolonged time period before landing on just the right mix. They even built a new Tesla Coil to handle the excess heat generated during long conditioning sessions. Once finalized, the SRX conditioning process created holographic realism and timbrel accuracy far beyond our previous Tesla Coil conditioning protocol. conditioning sessions. The final SRX conditioning process delivers exceptional timbral accuracy, holographic realism, and three-dimensional presence, surpassing previous Tesla Coil protocols.

Gold and Silver SX Tuning Bullets—Redefining Refinement

The Galileo Tuning Circuits have been completely reformulated and re-voiced with technology developed for the ultra-resolution and musical Galileo SX line of cables. The new Silver Bullets deliver greater detail along with added warmth compared to the previous generation, while the Gold Bullets now provide even more musicality, liquid smoothness, and a touch of additional air and detail. For optimal results, Synergistic Research recommends allowing any cable to settle in the system for 72 to 96 hours without removal or handling and without Gold or Silver Bullets attached. Once settled, audition the Gold Bullets first, followed by the Silver Bullets, to determine which voicing produces the most natural musical presentation in the system. Atmosphere Excite SX includes the RED UEF Tuning Module, while Atmosphere Euphoria SX is equipped with both RED and BLUE UEF Tuning Modules for greater flexibility.

Gold Tuning Module’s Sonic Characteristics:

• Greater Musicality
• Greater Liquid Smoothness
• Air and Detail

Silver Tuning Module’s Sonic Characteristics:

• Greater Air and Detail
• Musicality
• Liquid Smoothness

UEF Ground Plane

Atmosphere Excite SX and Euphoria SX interconnects incorporate the capability to ground your cables to either a wall outlet with the included SR Ground plug or to a Synergistic Research Ground Block (sold separately) to elevate the performance even further.  Benefits include a noticeable increase in deep bass power and weight, a more holographic sound field, smoother high frequencies with greater extension and ‘air’, a more present and layered mid-range, increased tonal density with an apparent increase in resolution.  

Specifications: