H HIFIHEAR ST16 Plus IEM Cable QDC 3.5mm 16-core

This cable is built for listeners who want a longer, more durable wired connection without sacrificing sound detail. It combines 5N high-purity single-crystal copper cores with silver plating, a soft anti-tangle jacket, and multiple connector options — including a QDC-style 2-pin — to match a wide range of earphones and source devices. Available in three colorways and with 2.5mm/3.5mm/4.4mm termination choices, the ST16 Plus aims to be a flexible, premium replacement cable for everyday use and critical listening.

How does the ST16 Plus change sound compared with stock cables?

By using 16 cores of 5N single-crystal copper with silver plating, the ST16 Plus emphasizes a clearer high end while preserving strong lows and cohesive mids. The conductor diameter and braided design reduce signal loss and improve transient detail for a more defined soundstage.

• 16-core, 224 total strands per side for improved resolution
• Silver-plated copper enhances treble clarity without harshness
• Braided 23AWG structure supports balanced tonal cohesion

Will this cable physically fit my IEMs and player?

The ST16 Plus offers a selection of common connector types — QDC 2-pin, MMCX, 0.78mm 2-pin, and TFZ — so compatibility covers many popular models from KZ, CCA, ZSN families and other detachable-ear monitors. You can also choose 2.5mm, 3.5mm, or 4.4mm plugs to match single-ended or balanced outputs on portable players and dongles.

• QDC-type 2-pin full-coverage plug for broad device fit
• Gold-plated connector terminations for corrosion resistance
• Multiple jack sizes: 2.5mm / 3.5mm / 4.4mm to suit source devices

How comfortable and durable is the cable for daily use?

The cable uses a one-piece injection-molded strain relief and a soft ear-hook design that follows the ear’s shape for secure, comfortable wear. A special braid and tension-tested construction reduce tangles and extend lifespan, making it suitable for commuting, studio work, or light exercise.

• 2-meter length for more flexible placement and movement
• Soft ear hooks that match the auricle contour for comfort
• High-intensity tension testing and molded joints for longevity

Which color and termination should I choose for my setup?

Pick the color that complements your earphones and choose connector/plugs based on your source and IEM socket. If you use a balanced-capable player, select the 4.4mm or 2.5mm balanced plug for maximum channel separation; otherwise 3.5mm is the universal option.

• Deep black-blue, neutral brown-blue, or bright silver-blue finishes
• Select 3.5mm for universal compatibility, 4.4mm/2.5mm for balanced use
• Confirm your IEM pin type (QDC/2-pin/MMCX/TFZ) before ordering

Who is this for? The KBEAR ST16 Plus is targeted at audiophiles and daily listeners who want a longer, higher-quality wired connection for detachable IEMs. It’s suited for users replacing worn stock cables, upgrading for clearer highs and improved imaging, or needing a 2-meter length for desk, stage, or travel setups. Choose your connector and termination to match your earphones and player for the best fit and performance.