The TRN Dolphin uses a 10mm LCP (plastic) diaphragm driver and a liquid‑metal (aluminum/magnesium 3D printed) shell, paired with a removable SPC cable system (3.5mm default, 4.4/USB‑C sold separately). Sound is bright, high‑resolution and fast with strong bass drive and emphasis on clarity, but reviewers consistently note a forward/shouty treble and recessed mids—making these specialist IEMs for clarity seekers rather than neutral listeners.
Buy if you want a compact, solid‑shell IEM with punchy dynamics and bright, detailed treble; avoid if you prefer warm, mid‑forward or non‑fatiguing tuning.
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