Kiwi Ears x B_Media Terras IEM Upgrade Cable, 4N Copper

The Kiwi Ears x B_Media Terras IEM Cable is a collaborative upgrade cable built with Axel Bostrom (B_Media) to deliver a cleaner, richer signal path for your in-ear monitors. Crafted from ultra-high-purity 4N single-crystal copper in a Litz-type braided structure, this IEM upgrade cable is designed for listeners who want balanced bass, rich mids, and sparkling treble without re-cabling every time they switch source devices.

Thanks to its modular plug system with swappable 3.5mm, 4.4mm, and USB-C terminations, this cable works seamlessly across DAPs, DAC/AMPs, smartphones, tablets, and laptops — making it a practical, everyday upgrade cable for audiophiles who move between multiple setups. Whether you're fine-tuning your desktop listening chain or building a portable audiophile IEM cable rig, the Terras is designed to reduce microphonics and signal interference while staying comfortable for long listening sessions.

For shoppers comparing options like a Kiwi Ears IEM cable or other premium copper upgrade cables, the Terras stands out for its collaborative tuning, durable 400D bulletproof fiber sheathing, and true plug-and-play flexibility.

Key Features

• 4N Single-Crystal Copper Conductors — Ultra-high-purity copper reduces signal loss and preserves detail, giving you a cleaner, more accurate sound compared to standard OFC cables.

• Litz-Type Braided Wire Structure (32AWG) — The braided Litz design minimizes signal interference and skin effect, so your IEMs reproduce balanced bass, rich mids, and sparkling treble with better clarity.

• 400D Bulletproof Fiber Sheathing — A tough, tangle-resistant jacket protects the internal wiring from daily wear, making the cable durable enough for travel, commuting, and studio use.

• Modular Plug Design (3.5mm, 4.4mm, USB-C) — Swap terminations in seconds to match any source — no need to buy multiple cables for different DAPs, phones, or DAC/AMPs.

• Low Microphonics Design — Reduced cable noise means fewer distracting sounds when walking, typing, or moving around during gaming or studio monitoring.

• Broad Device Compatibility — Works with IEMs, DAC/AMPs, DAPs, smartphones, tablets, and laptops, so it fits naturally into almost any listening setup.

Why Choose This Product

The Kiwi Ears x B_Media Terras IEM Cable is built for listeners who want one dependable cable that adapts to their entire audio ecosystem instead of juggling several IEM upgrade cables. The modular 3.5mm, 4.4mm, and USB-C system means you're not locked into a single source device — a genuine practical advantage over fixed-termination cables.

Beyond flexibility, the collaboration with B_Media brings a tuning perspective focused on musicality: balanced low end, present mids, and treble that stays detailed without becoming harsh. Combined with the 4N copper conductors and rugged 400D fiber jacket, this is a cable designed to last through daily use — whether that's a morning commute, a full studio session, or a late-night gaming run. For anyone comparing a Kiwi Ears IEM cable against generic third-party options, the Terras offers a rare combination of tuning credibility, build quality, and real-world versatility.

Best Use Cases

• Audiophile Listening — Get a more refined, balanced signal from your existing IEMs.

• Gaming — Low microphonics keeps movement noise out of your audio during long sessions.

• Studio Monitoring — Reliable, interference-resistant signal transfer for critical listening.

• Travel & Commuting — Durable 400D sheathing and modular plugs handle multiple devices on the go.

Technical Specifications