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I own Bliss Hifi, a high-end audio boutique and authorized Synergistic Research dealer, and these Atmosphere UEF Level 4 RCA interconnects were originally a lightly-used dealer demo that were sold to client of mine who has traded them in to move further up the SR product line. They are in excellent condition and work flawlessly.

The cable is outfitted with both blue and red tuning circuits, which allow you to tailor the sound to your liking. It also comes with its ground plug, which lowers the noise floor slightly. For best results, you’ll experience more significant benefits by connecting this cable to one of SR’s Active Ground Blocks. This cable comes with in SR packaging, but it does not have the label on the package denoting the specific model or configuration of the cables.

These cables were very highly reviewed in the press, and they’re still one of my favorite lines from Synergistic Research from the last decade.

Check my stellar feedback and buy with confidence. Item ships free in the CONUS. This listing includes free insured shipping across the CONUS. I prefer fee-free payments, which include ACH bank payments, PayPal F&F, Venmo Gift, cashier’s check, and personal check (has to clear prior to shipping), but I can accept credit card payments through my QuickBooks invoicing system.

Happy to answer any questions. Thanks for your consideration.

More about this cable:

The Synergistic Research Atmosphere UEF Level 4 Interconnects represent the company’s advanced approach to cable design, incorporating their proprietary UEF (Uniform Energy Field) technology alongside carefully selected conductor materials and geometries. These interconnects are built to address the complex relationship between signal transfer and electromagnetic field management, utilizing multiple layers of shielding and treatment processes that Synergistic Research has developed over years of experimentation. The Level 4 designation places these cables among the upper tier of the Atmosphere series, reflecting increased sophistication in materials and construction techniques aimed at preserving signal integrity across the frequency spectrum.

What distinguishes the Atmosphere UEF Level 4 is its attention to minimizing the artifacts that can color sound reproduction. The cable’s construction focuses on maintaining phase coherence and low-level detail retrieval, while the UEF treatment process is designed to condition the dielectric properties for improved signal transmission. Users often note that these interconnects excel at creating a stable, three-dimensional soundstage with well-defined imaging and natural tonal balance. The cables benefit from proper break-in time and careful system matching, as their performance characteristics can be influenced by associated components. For audiophiles building reference-level systems who value Synergistic Research’s design philosophy, the Atmosphere UEF Level 4 interconnects offer a sophisticated solution that aims to let the music come through with minimal editorialization.Retry

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