Synergistic Research SRX XL Speaker Cable

Synergistic Research SRX XL Speaker Cable

The SRX XL Speaker Cable applies Synergistic Research's SRX XL platform to speaker cables, following the same scaled-up approach developed for the SRX XL AC power cable roughly a year earlier. It increases the number of hand-made, air-dielectric pure silver geometries over the original SRX speaker cable, adds a new UEF compound to its Matrix Shielding for a lower noise floor, and uses an extended-duration high-voltage conditioning process. Each pair ships standard with 8 Carbon Performance Elevators (with built-in Red Dot HFTs) and 24 carbon fibre spacers, keeping the entire cable run off the floor. Owners with a complete loom of SRX series cables can trade in for up to 70% credit toward SRX XL through the Lifetime Passport Protection Program. As an authorized Synergistic Research dealer in Toronto, Canada, Vinyl Sound can help you plan a complete SRX XL loom for your system.

Key Features

• 32 separate internal geometries per pair: 12x 14 AWG pure silver Air Strings, 16x 2nd-gen pure silver mono-filament Air Strings, 4x 4th-gen Tricon (tri-axial) conductors
• 8x UEF Cells (silver ribbons/copper with UEF, Teflon dielectric)
• SRX XL Matrix Shielding with a new UEF compound and Graphene coating
• SR BoFa Banana and SR Gold Spade connectors
• Ships standard with Gold and Master carbon fibre UEF Tuning Bullets (work entirely outside the signal path)
• Includes 8 Carbon Performance Elevators (with built-in Red Dot HFT) and 24 carbon fibre spacers per 8ft pair
• SRX XL Quantum Tunneling — an advanced high-voltage conditioning process improved over the original SRX
• Trade-in eligible under the Lifetime Passport Protection Program (up to 70% credit from an existing SRX loom)

Tuning Modules

SRX XL Speaker Cables ship standard with Gold and Master carbon fibre UEF Tuning Bullets. After letting the cable settle in for 48–72 hours, compare the two on a cable-by-cable basis:

• Gold — warmer, more liquid balance; also open and transparent
• Master — more extended and detailed

Which sounds more neutral is system-dependent — most owners find one option works best across most of their loom, with a few cables performing better with the alternate option.

Technical Specifications

Press & Reviews

The SRX cable series (the predecessor to SRX XL) has been reviewed by major audio publications:

"[They] are superb imagers and soundstagers; [they] reproduce the dynamic range of recordings with high accuracy; [they] are astonishingly realistic sounding with great tapes, LPs, and streams; and both lower noises and colorations to unprecedented levels."
— Jonathan Valin, The Absolute Sound, January 2023

"When only one SRX power cord was used with the Synergistic Research PowerCell power conditioner to drive my entire system there was a clear correctness of presentation that had not previously been realized... If you audition the SRX, you may never go back."
— Robert Youman, Positive Feedback, August 2019

SRX XL Speaker Cable FAQ

Do the included Carbon Performance Elevators need to be purchased separately?
No — 8 Carbon Performance Elevators and 24 carbon fibre spacers are included with each 8ft pair.

Should I use Gold or Master tuning modules?
It's system-dependent — Gold tends toward warmth and liquidity, Master toward extension and detail. Let the cable settle for 48–72 hours, then compare both on each cable individually.

Is a bi-wire option available?
Yes — Synergistic Research offers an SRX XL IFT Bi-Wire jumper set (2 positive, 2 negative) for bi-wireable speakers. Ask your Vinyl Sound dealer for details.

Can I trade in my existing SRX speaker cables?
Yes, through Synergistic Research's Lifetime Passport Protection Program, existing SRX series cables can be traded in for up to 70% credit toward a new SRX XL loom.