FiiO LC-RC MMCX 3.5mm / 4.4mm

Description

Unleashing the True Resolution of High-End Earphones

High-fidelity personal audio demands a transmission path that introduces zero degradation to the delicate musical signal. The FiiO LC-RC earphone cable acts as a critical link between high-resolution source components and premium in-ear monitors. Drawing upon seventeen years of acoustic engineering expertise, FiiO developed this cable to minimize signal loss, lower overall electrical resistance, and extract the finest micro-details from your favorite recordings. It serves as a seamless upgrade that noticeably refines the musicality, tonal balance, and transient response of compatible earphones.

Certified Furukawa Monocrystalline Copper Architecture

The heart of the LC-RC consists of authentic monocrystalline copper wires imported directly from Furukawa Denki Industrial Co., Ltd. in Japan. To ensure an unimpeded path for signal transmission, the copper undergoes an intensive secondary refining and high-standard wire drawing process involving over 70 individual steps. This meticulous forging minimizes pores, impurities, and grain boundaries within the molecular structure of the copper. The result is an ultra-pure conductor that allows musical waveforms to travel freely, drastically reducing signal distortion and delivering a cleaner, more transparent listening experience.

Advanced Multi-Strand Coaxial Braiding

To maximize conductivity while retaining an ergonomic, flexible form factor, FiiO implements a complex 4-strand coaxial braiding structure. The cable incorporates a staggering total of 480 individual wires. While high-purity monocrystalline copper forms the bulk of each major strand, FiiO positions 20 wires of silver-plated monocrystalline copper directly at the center of each strand. This hybrid configuration combines a generous 22AWG cross-sectional area with the high-frequency extension benefits of silver, ensuring a flat, natural frequency response across the entire audio spectrum.

Modular Interconnection and Durable Ergonomics

Modern portable audio setups frequently alternate between single-ended and balanced architectures. The LC-RC addresses this with a modular, swappable audio plug design that allows the listener to quickly exchange the termination between a 3.5mm single-ended plug and a 4.4mm balanced Pentaconn plug. On the earphone side, expanded MMCX connectors ensure a secure, robust mechanical fit with a wide variety of IEM brands. For effortless daily use, the cable features clear color-coded markings—blue for left and red for right—and is wrapped in a translucent German TPU outer sheath. This specialized coating guards against yellowing from UV exposure and prevents the cable from stiffening in low-temperature environments.

Frequently Asked Questions

Why choose the FiiO LC-RC MMCX cable?

This product is the ideal solution for personal audio enthusiasts who want to upgrade their factory earphone cables for superior sound quality, or who own multiple source devices. It allows you to seamlessly shift from a standard 3.5mm headphone jack to a high-performance 4.4mm balanced amplifier output using a single high-purity copper cable, maximizing your earphones' musical performance without needing separate cables.

With which earphones is this cable compatible?

The cable uses universal expanded MMCX connectors, making it widely compatible with any in-ear monitors or earphones that feature a standard detachable MMCX interface.

What are the benefits of the silver-plated copper wires inside the core?

By placing silver-plated monocrystalline copper at the center of each strand, the cable benefits from the excellent conductivity of silver for high frequencies, while the surrounding pure copper maintains rich, natural mid-range and bass response.

Will this cable become stiff and rigid during Canadian winters?

No. The outer jacket is constructed from high-grade German TPU (Thermoplastic Polyurethane) material, which is specifically formulated to resist hardening or stiffening when exposed to low-temperature environments.

Does the package include a 2.5mm balanced plug?

No. The current FiiO LC-RC  includes two specific swappable terminations: a 3.5mm single-ended plug and a 4.4mm balanced plug.

What's in the Box

FiiO LC-RC 2024 Edition MMCX cable

Swappable 3.5mm single-ended audio plug

Swappable 4.4mm balanced audio plug