Keephifi ST16 MAX 1.5m IEM Cable – 16-Strand SPC Copper, 2-Pin, 3.5mm/4.4mm, Black-Blue

Overview

The Keephifi ST16 MAX 1.5m IEM cable is designed to balance portability with practical reach. At 1.5 meters (about 5 feet), the length sits comfortably between common market options, offering easy handling during travel while keeping controls accessible and the setup uncluttered on a desk or in transit. This medium length aims to strike a practical middle ground for everyday listening and on-the-go use.

Premium build and material science

Continuing the ST16 tradition, the ST16 MAX features a braided 16-strand construction. Each strand holds 14 cores, totaling 224 cores crafted from 5N single-crystal copper with silver plating. This combination is designed to balance robust bass and cohesive midrange with bright, articulate highs, delivering a listening experience that can feel immersive across genres.

Sound characteristics and listening feel

In practice, the long IEM cable offers distinct tonal qualities across frequencies. Low frequencies can dive deep with depth and clarity, mids stay solid for vocal presence, and highs remain delicate without harshness. While results depend on the source and earphones, the design aims to convey texture and dimension across tracks and styles.

Design and durability

The cable supports multiple connection options: 2-Pin, QDC, and MMCX, with both 3.5mm and 4.4mm plug variants. Gold-plated pins paired with an anodized aluminum housing provide corrosion resistance and long-lasting durability. The over-ear design helps keep the cable in place, while the minimalist Black/Blue colorway blends with many rigs and setups.

Compatibility and versatility

Designed for standard Hi-Fi headphones with replaceable plugs, the ST16 MAX is compatible with a wide range of devices—from smartphones and tablets to laptops and dedicated players. It suits IEMs such as Truthear x Crinacle Zero, Moondrop Blessing/Aria/Stellaris, Simgot EW100P/EW200/EA500, Kiwi Orchestra Lite, and similar models. The over-ear fit helps with comfort during longer listening sessions.

Real-world scenarios

Use this cable at home, in a studio, or while traveling. The medium length, rugged construction, and flexible plug options can translate into practical comfort and easy compatibility in diverse setups. Consider it as a potential upgrade path for existing detachable cables, especially if you value balanced bass, clear mids, and refined highs.

• 1.5 m length offers a balanced reach for travel and at-desk listening
• 16-strand braided design with 224 cores supports a cohesive sound signature
• Gold-plated pins and aviation-grade housing promote durability
• 2-Pin/QDC/MMCX with 3.5mm and 4.4mm plugs adds versatility
• Compatible with popular IEMs like Truthear Zero and Blessing lines

• Ideal for singers, musicians, and audiophiles who value detail
• May improve handling of powerful bass and clear mids without harshness
• Supports secure over-ear wear for long listening sessions
• Works with various devices from smartphones to laptops

Overall, the ST16 MAX aims to offer a practical, well-built option for listeners who want a mid-length, high-fidelity IEM cable without committing to longer extensions or sacrificing compatibility.