Synergistic Research Foundation SX Speaker Cables
Best high-fidelity upgrade for audiophiles seeking a refined, immersive soundstage.
Experience the signature Synergistic Research sound with Foundation speaker cables. Engineered to integrate flawlessly with other SR Series components, these cables deliver exceptional detail, air, soundstaging, and dynamics, all while maintaining an ultra-low noise floor. They serve as an ideal foundation for your audio system, enhancing synergy with SR acoustics, AC, and ground filtration products. Mix and match with confidence, knowing you'll preserve the distinct SR sound for a truly immersive listening experience.
$399.00
Owner Satisfaction
4.5
/ 5
Category Rank
1969
/ 5745
#1969 in Audio & Video Cables
Price vs Category Average
-26%
Below average
Silver Air Strings
99.9999
/ % pure monocrystal silver conductor
Who it's for
- Music lovers demanding fast, punchy, and highly responsive dynamics
- Audiophiles seeking maximum clarity and hidden musical micro-details
- Listeners craving an immersive, holographic three-dimensional soundstage
Who should skip it
- Users with less refined components prone to revealing system flaws
- Budget-conscious buyers with entry-level or mid-range audio systems
- Owners with tight spaces or limited room behind equipment racks
Performance breakdown
Signal Transparency
Monocrystal silver conductors ensure an exceptionally clean and uncolored signal path.
Soundstage Depth
Air-dielectric construction expands the perceived physical space of your recordings.
Noise Floor Reduction
Graphene-infused UEF coating effectively eliminates background interference for absolute clarity.
Build Integrity
Hand-soldered point-to-point connections reflect high-level California craftsmanship.
System Synergy
Designed to integrate perfectly with the broader Synergistic Research ecosystem.
Dynamic Response
Quantum Tunneling technology allows for rapid, effortless transient delivery.
Key Specs
Silver Air Strings
99.9999% pure monocrystal silver conductor
High Current Copper Air Strings
99.95% pure copper conductor
Dielectric
Air (sealed)
Shielding
Silver Braid - Quantum Tunneled
Connectors
SR BoFa Banana and SR Silver Spade
16 point-to-point hand soldered connections
UEF coating with Graphene applied to connectors
Hand crafted in California
Features
- UEF coating with Graphene reduces noise floor
- Quantum Tunneling enhances electron flow
- 5-day, 2-step burn-in for peak performance
- Hand-built with 16 point-to-point connections
- Blends seamlessly with other SR Series cables
- Creates synergy with SR acoustics and power products
- Delivers detail, air, and dynamics
- Ultra-low noise floor for purer signal
What customers say
Users consistently report that the Foundation SX Speaker Cables deliver a profound sonic improvement, focusing primarily on soundstage expansion and detail retrieval. Listeners frequently describe the presentation as holographic, offering exceptional depth and width where instruments sound natural and three dimensional. A key benefit noted is the ability to retrieve significant detail without any harshness or listening fatigue, resulting in a highly musical experience. Many attribute this clarity to an enhanced sense of background quietness, which sharpens micro dynamics and transient speed. While these are premium components, purchasers generally feel the performance leap justifies the investment, often exceeding expectations compared to similarly priced alternatives. A notable consideration is the required extended break in time before peak performance is achieved.
Know before you buy
The UEF coating with Graphene is designed to lower the noise floor of your system. By reducing electromagnetic interference, it allows for greater clarity, finer detail, and a more expansive soundstage.
Unlike standard cables, the Foundation SX utilizes a hybrid design of high-purity monocrystal silver and copper air strings. This, combined with Quantum Tunneling and specialized shielding, provides a significantly more transparent and dynamic signal path.
Yes, these cables undergo a 5-day, 2-step burn-in process at the factory to reach peak performance. However, you may notice further subtle improvements in sound quality after they have been settled into your specific system for a few days.
While these cables are engineered to create perfect synergy with other Synergistic Research products, they are designed to be neutral and high-performing in any high-end audio system. You can confidently integrate them into a mixed-brand setup to improve overall signal purity.
The Foundation SX cables come equipped with high-quality SR BoFa banana plugs or SR silver spades. Both options feature silver-plated contact surfaces and are treated with UEF coating to ensure a secure, low-resistance connection.
Yes, they feature a braided silver shield that is Quantum Tunneled to protect the signal from external interference. Despite the robust shielding, the cables remain flexible enough for standard routing behind your audio rack or speakers.
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