The ZiSin Vermilion Flame pairs a 1DD+2BA hybrid driver configuration with a detachable 0.78mm 2‑pin cable (3.5mm SE and 4.4mm balanced termination). It offers a titanium-coated composite diaphragm dynamic driver and claimed 26 dB passive isolation, but lacks independent measurements and complete published specs (THD, S/N), making sonic claims harder to verify; good for listeners who want a hybrid IEM with balanced output options, but expect uncertified performance.
Buyers who want a hybrid 1DD+2BA IEM with 4.4mm balanced option and upgradeable cable; avoid if you need measured specs or verified lab data.
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