Furutech FT-7445(R) High End Performance 4.4mm (TRRRS) Connector

Furutech FT-7445(R) Enables High-End Balanced Audio Performance

Furutech FT-7445(R) 4.4mm TRRRS Balanced Connector is a precision-engineered, high-fidelity plug designed for audiophile-grade signal transmission in portable and desktop audio systems. Built for seamless compatibility with Sony Signature Series models—including the NW-WM1Z, NW-WM1A, and TA-ZH1ES—this connector delivers uncompromised clarity and connection integrity for balanced headphone and line-level applications.

Connector Features One-Piece Rhodium-Plated α (Alpha) Copper Alloy

Furutech’s FT-7445(R) balanced connector is defined by its single-piece signal conductor—machined from Furutech’s proprietary α (Alpha) copper alloy. This one-piece design reduces the number of contact junctions, eliminating signal breaks and maintaining uniform conductivity across the entire signal path. A layer of rhodium plating adds exceptional durability and oxidation resistance, ensuring consistent high-performance over time. This approach addresses signal loss and microphonic interference, both critical to preserving sonic detail in balanced configurations.

Internal Architecture Uses Audio-Grade POM Dielectric for Signal Clarity

FT-7445(R)’s internal insulation employs high-purity polyoxymethylene (POM), a thermoplastic known for its dimensional stability and low dielectric constant. This audio-grade insulator stabilises internal structure while minimising capacitive loading, crucial in preserving frequency response and transients in high-resolution playback systems. The result is a connector optimised not only for mechanical precision but also for sonic neutrality—ideal for users building custom cables for demanding audiophile applications.

Stainless Steel Housing Adds Structural Damping and Electromagnetic Shielding

The FT-7445(R) stainless outer shell reinforces the connector’s durability while acting as a passive resonance control structure. Its rigid, non-magnetic enclosure provides both acoustic damping and shielding from external EMI/RFI, contributing to a quieter noise floor and improved channel isolation in balanced setups. This makes it especially suited to environments with multiple digital sources or studio-grade hardware, where signal purity is paramount.

Cable Clamp Offers Strong Grip and Flexible Compatibility

An integrated copper alloy cable clamp securely holds cables with outer insulation diameters up to 6.0mm, supporting a broad range of audiophile cable builds—from lightweight portable interconnects to full-size headphone upgrades. Soldering points are optimised for secure, long-lasting connections, though Furutech advises light abrasion of the plating at the contact area to ensure optimal wetting during soldering. This level of design detail supports reliable termination, even under repeated handling.

TRRRS Format Supports Fully Balanced Signal Paths in Portable and Desktop Audio

As a 4.4mm TRRRS balanced connector, the FT-7445(R) meets the evolving standard for high-fidelity audio output in portable players, DAC/amps, and desktop systems. It facilitates true differential signalling, reducing noise, eliminating ground loop hum, and improving stereo separation. With support for balanced wiring topologies, this connector delivers a cleaner, wider soundstage and improved dynamics—ideal for reference listening or mastering-grade playback systems.