Synergistic Research
Foundation SX Speaker Cable
Introduced 2022$749 MSRP
Entry point to Synergistic Research's hand-built cable line, combining four 99.9999% monocrystalline silver air strings with four high-current copper air strings and quantum-tunneled silver braid shielding. Assembled with 16 point-to-point hand-soldered connections and treated with SR's high-voltage conditioning process.
MSRP
$749
Used market · Excellent
$400est.
-47% vs MSRP
as of Aug 17, 2026MSRP to used market
From $749 at launch to $400 today (estimated).
Specifications
- Type
- speaker cable
- Termination
- SR BoFa bananas or silver spades
- Construction
- silver and copper air-dielectric strings, UEF graphene-coated shielding
- Standard length
- 8 ft pair
- Conductor material
- monocrystalline silver and OFC copper
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