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Product Description

Line Circle
Foundation SX headphone cables are handmade in our California factory from core Synergistic Research technologies, including handmade Air String Geometries made or pure 99.9999% Pure Silver conductors in an Air Dielectric for unmatched resolution.
Get the Details

Features & Specs Line Circle

SOURCE CONNECTION
3.5mm with 6.35mm (1/4″) adapter
DESTINATION CONNECTION
4 Pin Mini XLR (Audeze LCD4,3,2,X, XC: Meze Empyrean: ZMF Atticus, ZMF Eikon)
BUILD NOTES
Hand build time: 2 hours
LENGTH
1 Meter
SOURCE CONNECTION
3.5mm with 6.35mm (1/4″) adapter
DESTINATION CONNECTION
4 Pin Mini XLR (Audeze LCD4,3,2,X, XC: Meze Empyrean: ZMF Atticus, ZMF Eikon)
BUILD NOTES
Hand build time: 2 hours
LENGTH
1 Meter

Expert Insight

Line Circle

Foundation has the added bonus that for more attainably priced systems, it covers its tracks well and could stay in a system for the long haul; in fact, it’s only when you insert them in a monumentally high-end wide bandwidth system do you begin to crave even more detail and extension… which points you further up the Synergistic range.

Expert Img
hi-fi+
Hi Fi Reviews

Details

Line Circle

Headphone Cables

Foundation SX headphone cables are handmade in our California factory from core Synergistic Research technologies, including handmade Air String Geometries made or pure 99.9999% Pure Silver conductors in an Air Dielectric for unmatched resolution. We then add UEF Matrix Shielding with a new UEF Compound first developed for our SRX cable loom for a dramatically lower noise floor. Next we include a new Long Duration High Voltage Conditioning Process, initially engineered for our flagship SRX cables, making Foundation SX the most musical and highest resolution headphone cables you can buy. With a full suite of SR Technologies, you hear inner detail and holographic realism that’s never harsh or fatiguing, unlike most pure silver-based cables. And to make voicing them to your headphone rig easy, we include UEF Carbon Tuning discs to strike the perfect balance of musicality and resolution. In short, we’ve created the world’s best headphone cables, and we’re confident you’ll love their sound over ANY headphone cable on the market, regardless of price. So step up, take the Foundation SX Challenge and discover how good your current headphone system actually is.

Source Connections.

4 PIN XLR, 3.5mm connector (with  included 6.35mm (1/4″) adapter) or Dual 3 PIN XLR (+$100)

For other connections please contact us

Specifications:

4 each Silver Air String:

  • Silver Air Strings: 99.9999% pure monocrystal silver conductor
  • 4 separate conductors
  • Dielectric: Air (sealed)
  • Shielding: Silver Braid -Quantum Tunneled

Source Connectors:

  • Neutrik 4 PIN XLR
  • 3.5mm with 6.35mm (1/4″) adapter

Destination Connectors:

  • 2 Pin Lemo
  • 3 Pin Lemo (Focal Utopia)
  • MMCX ( Pioneer SR-Master1: Shure SRH1540 and SRH1840)
  • Sennheiser Push-Pull (Sennheiser HD820, HD800S, and HD800)
  • Sennheiser 2 Pin (Sennheiser HD650, HD600, HDXX)
  • Mr.Speakers 4 Pin Hirose (MrSpeakers: Aeon, Ether 2, Ether 2 Closed, Flow, Flow closed
  • 4 Pin Mini XLR (Audeze LCD4,3,2,X, XC: Meze Empyrean: ZMF Atticus, ZMF Eikon)
  • 3 Pin Mini XLR
  • 2.5mm Mono (Hifiman Old Styles)
  • 3.5mm Mono
  • 3.5mm Stereo (Hifiman current: Ananda, Susvara, HE1000, HE400i, HE500, HE6 and HE650)
  • 8 Contact
  • SMC
  • TRRS (2.5mm and 3.5mm)

Always confirm your connections with your headphone manufacturer.

Build Notes:

  • 12 point-to-point hand soldered connections
  • Atmosphere Level 2 UEF Matrix Shielding: UEF coating with Graphene is applied directly to connectors significantly reducing the noise floor and allowing a purer signal to transfer with less grain providing more warmth and detail
  • Silver Solder: 4%
  • Hand build time: 2 hours
  • Quantum Tunneling: Post Production process, 1 million volts are passed through finished cable providing a “canal” that allows electrons to pass more freely through conductor material and connections
  • Secondary UEF Blue Treatment originally developed for SR Blue Fuses
  • 5 day Burn-in: 2 step process
  • Hand crafted in our California factory

Reviews

Line Circle
Product Descriptiondown arrow

Product Description

Line Circle
Foundation SX headphone cables are handmade in our California factory from core Synergistic Research technologies, including handmade Air String Geometries made or pure 99.9999% Pure Silver conductors in an Air Dielectric for unmatched resolution.
Get the Details
Features & Specsdown arrow

Features & Specs Line Circle

SOURCE CONNECTION
3.5mm with 6.35mm (1/4″) adapter
DESTINATION CONNECTION
4 Pin Mini XLR (Audeze LCD4,3,2,X, XC: Meze Empyrean: ZMF Atticus, ZMF Eikon)
BUILD NOTES
Hand build time: 2 hours
LENGTH
1 Meter
SOURCE CONNECTION
3.5mm with 6.35mm (1/4″) adapter
DESTINATION CONNECTION
4 Pin Mini XLR (Audeze LCD4,3,2,X, XC: Meze Empyrean: ZMF Atticus, ZMF Eikon)
BUILD NOTES
Hand build time: 2 hours
LENGTH
1 Meter
Expert Insightdown arrow

Expert Insight

Line Circle

Foundation has the added bonus that for more attainably priced systems, it covers its tracks well and could stay in a system for the long haul; in fact, it’s only when you insert them in a monumentally high-end wide bandwidth system do you begin to crave even more detail and extension… which points you further up the Synergistic range.

Expert Img
hi-fi+
Hi Fi Reviews
Detailsdown arrow

Details

Line Circle

Headphone Cables

Foundation SX headphone cables are handmade in our California factory from core Synergistic Research technologies, including handmade Air String Geometries made or pure 99.9999% Pure Silver conductors in an Air Dielectric for unmatched resolution. We then add UEF Matrix Shielding with a new UEF Compound first developed for our SRX cable loom for a dramatically lower noise floor. Next we include a new Long Duration High Voltage Conditioning Process, initially engineered for our flagship SRX cables, making Foundation SX the most musical and highest resolution headphone cables you can buy. With a full suite of SR Technologies, you hear inner detail and holographic realism that’s never harsh or fatiguing, unlike most pure silver-based cables. And to make voicing them to your headphone rig easy, we include UEF Carbon Tuning discs to strike the perfect balance of musicality and resolution. In short, we’ve created the world’s best headphone cables, and we’re confident you’ll love their sound over ANY headphone cable on the market, regardless of price. So step up, take the Foundation SX Challenge and discover how good your current headphone system actually is.

Source Connections.

4 PIN XLR, 3.5mm connector (with  included 6.35mm (1/4″) adapter) or Dual 3 PIN XLR (+$100)

For other connections please contact us

Specifications:

4 each Silver Air String:

  • Silver Air Strings: 99.9999% pure monocrystal silver conductor
  • 4 separate conductors
  • Dielectric: Air (sealed)
  • Shielding: Silver Braid -Quantum Tunneled

Source Connectors:

  • Neutrik 4 PIN XLR
  • 3.5mm with 6.35mm (1/4″) adapter

Destination Connectors:

  • 2 Pin Lemo
  • 3 Pin Lemo (Focal Utopia)
  • MMCX ( Pioneer SR-Master1: Shure SRH1540 and SRH1840)
  • Sennheiser Push-Pull (Sennheiser HD820, HD800S, and HD800)
  • Sennheiser 2 Pin (Sennheiser HD650, HD600, HDXX)
  • Mr.Speakers 4 Pin Hirose (MrSpeakers: Aeon, Ether 2, Ether 2 Closed, Flow, Flow closed
  • 4 Pin Mini XLR (Audeze LCD4,3,2,X, XC: Meze Empyrean: ZMF Atticus, ZMF Eikon)
  • 3 Pin Mini XLR
  • 2.5mm Mono (Hifiman Old Styles)
  • 3.5mm Mono
  • 3.5mm Stereo (Hifiman current: Ananda, Susvara, HE1000, HE400i, HE500, HE6 and HE650)
  • 8 Contact
  • SMC
  • TRRS (2.5mm and 3.5mm)

Always confirm your connections with your headphone manufacturer.

Build Notes:

  • 12 point-to-point hand soldered connections
  • Atmosphere Level 2 UEF Matrix Shielding: UEF coating with Graphene is applied directly to connectors significantly reducing the noise floor and allowing a purer signal to transfer with less grain providing more warmth and detail
  • Silver Solder: 4%
  • Hand build time: 2 hours
  • Quantum Tunneling: Post Production process, 1 million volts are passed through finished cable providing a “canal” that allows electrons to pass more freely through conductor material and connections
  • Secondary UEF Blue Treatment originally developed for SR Blue Fuses
  • 5 day Burn-in: 2 step process
  • Hand crafted in our California factory
Reviewsdown arrow

Reviews

Line Circle
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