Synergistic Research SRX XL Headphone Cable

SRX XL

Headphone Cables

Building on the engineering breakthroughs achieved across the SRX XL cable series, we now bring our flagship technologies to the most intimate listening experience of all. The SRX XL Headphone Cable applies the same advanced conductor architecture, shielding, and conditioning developed for our reference-level interconnects, speaker cables, and power cords to deliver a new benchmark in headphone performance. We’ve scaled our hand-made air-dielectric pure silver geometries for headphone applications, optimizing conductor count and cable flexibility to ensure exceptional comfort during extended listening sessions without compromising the resolution and dynamics that define the SRX XL series. Our all-new UEF compound is applied to advanced matrix shielding, further lowering the noise floor while lessening restraints a shield may have on signal transmission. Each cable is then run through our most advanced high voltage conditioning process, resulting in a headphone cable that sounds more open, accurate, and musically engaging than anything we’ve previously created. The SRX XL Headphone Cable takes our industry-leading dynamics to a whole new level while improving upon nearly every aspect of headphone performance, including soundstaging, noise floor, and high-frequency extension with remarkable smoothness.

Discover how transformational the new SRX XL Headphone Cable is and audition it in your system today. And if you already own Synergistic Research headphone cables, ask your dealer or distributor how you can take advantage of our Lifetime Passport Protection Plan, where you receive a 70% trade-in allowance toward a new SRX XL Headphone Cable. Of course, you can audition risk-free to gauge the improvements this exceptional cable can bring to your headphone system.

Enhanced Cable Geometries

6N Pure Silver Airstrings, Multiplied

While voicing the SRX XL Headphone Cable, we developed more comprehensive cable geometries with additional 99.9995% Pure Silver Air Strings optimized for the unique demands of headphone signal transmission. In doing so, music is portrayed with more immediacy and resolution, improving upon dynamics and transient response in a completely non-fatiguing way. The result is a headphone cable that reveals layers of inner detail and spatial information with a naturalness and ease that makes extended listening sessions not just comfortable, but captivating.

UEF Matrix Shield with Graphene

SRX XL Matrix Shielding

In our journey to design our latest flagship SRX XL series, we developed an entirely new UEF compound to elevate the performance of our previous Matrix Shielding, which further lowers each cable’s noise floor while lessening restraints a shield may have on signal transmission. We apply this highest level of shielding to the SRX XL Headphone Cable for a significant jump in performance over previous headphone cables. For headphone listening, where every nuance is magnified by the proximity of the drivers to your ears, this dramatically lower noise floor reveals micro-dynamics and ambient detail that lesser cables simply mask. Gold and Master Tuning Bullets developed for the SRX series further refine and enhance the cable’s ability to cancel noise that would otherwise cause high frequencies to sound harsh or fatiguing.

SRX + Master Carbon Cable Tuning Modules

Redefining Refinement

SRX XL Headphone Cables come standard with the most potent and musical SRX Master and Gold carbon fiber UEF Tuning Bullets in our company’s 30-year history. The bullets are specially voiced for the SRX cable series so you can strike the perfect balance between detail and musicality for your headphone system. Both Gold and Master bullets are handcrafted in our Southern California Factory from carbon fiber and aircraft aluminum, with the Gold bullet plated in 24k gold not only for aesthetic beauty but also to help voice the bullet to its intended role as the most musical option for specific systems. To use SRX Carbon Fiber Tuning Modules, allow your SRX XL Headphone Cable to settle into your system for 48–72 hours, and then experiment with your two options. Start by inserting a Gold Bullet and then compare to the Master option and select the variant that makes music in your system. Gold Bullets have a warm and liquid balance that is also more open and transparent than our other warm-biased tuning bullets. While Master is more extended and detailed, the option that will work best and sound neutral is totally system dependent. Note, UEF Tuning Bullets work 100% outside the signal path!

Master Tuning Module’s Sonic Characteristics:

• Greater Air and Detail
• Musicality
• Liquid Smoothness

Gold Tuning Module’s Sonic Characteristics:

• Greater Musicality
• Greater Liquid Smoothness
• Air and Detail

Connectors are Not All Created Equal

Custom Headphone Connections

Headphone connections demand precision. Each SRX XL Headphone Cable is built with custom-terminated connectors, ensuring maximum contact area and signal integrity at the most critical junction between cable and transducer. Input connections are available in Stereo 3.5mm, 1/4″ TRS, Stereo XLR, and Discrete XLR configurations to match your headphone amplifier. All connectors benefit from our UEF treatment with Graphene, significantly reducing the noise floor at each connection point and allowing a purer signal to transfer with less grain, providing more warmth and detail.

Quantum Tunneling

SRX XL High Voltage Conditioning

The new SRX XL High Voltage Conditioning is our most advanced process for treating cables with 1,000,000 volts of electricity at specific frequencies and pulse modulations for long durations, creating a canal in the conductor material and contact points at the molecular level that allows electrons to flow more freely. This new process improves upon the SRX High Voltage Conditioning process by employing new extended duration sweeping frequency plots and advancements to our Tesla Coil, resulting in an SRX XL Headphone Cable that sounds even more open and accurate than any headphone cable before it.

Available Connections

Source Connections

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

Additional connections may be available upon request.

Destination Connections

3 Pin Lemo

2 Pin Lemo

MMCX

Sennheiser Push Pull

Sennheiser 2 Pin

Mr. Speakers 4-Pin HiRose

4 Pin Mini XLR

3 Pin Mini XLR

2.5mm Mono

3.5mm Stereo

8 Contact

SMC