ICYGENIUS compares the new ST2 PRO 3.5mm with the earlier USB-C version and finds both built around a balanced, accessible presentation. The principal sonic difference is in bass quantity: the 3.5mm edition sounds lighter in the lows, while the USB-C version carries greater bass emphasis.
Controlled Bass With Plenty of Texture
From the beginning, ICYGENIUS hears a calm and mature low end rather than a basshead presentation. Sub-bass is soft and delicate, adding depth without making the sound heavy or dominant.
Mid-bass provides more of the character. He describes it as tight, punchy and textured, maintaining its shape even through fast or dense tracks. A slight extension into the lower mids adds warmth and density without turning muddy. For ICYGENIUS, this produces a cohesive presentation where bass supports the rest of the music instead of overwhelming it.
Lively Mids Without Going Analytical
The midrange continues that balanced approach with an energetic, rich and relatively light character. Attacks sound fast and clear, while vocals and instruments remain neatly presented rather than drawn out.
Transparency is also good in his experience, leaving audible space between instruments. ICYGENIUS does not consider the ST2 PRO 3.5mm aggressively analytical, but neither does he hear the mids as blurred. Vocals come across naturally and confidently, while instruments retain clarity and liveliness.
This versatility allows the IEM to work across a broad selection of music without feeling tied to one genre.
Treble and Stage Keep Things Comfortable
ICYGENIUS finds the treble detailed, clean and carefully controlled. It reveals recording nuances, reverberations, decays and air without becoming excessively bright or harsh. Even during longer listening, he finds the highs calm and comfortable rather than tiring.
The soundstage follows a similarly natural philosophy. It is moderate in size rather than artificially expansive, with balanced width and depth. Instruments occupy logical positions with useful space between them, while localization is solid for the budget. The presentation stays cohesive and easy to follow.
The small transparent resin shells also fit ICYGENIUS well and provide good isolation. He also notes the metal sound guide, protective mesh and detachable two-pin connection, while the package includes silicone tips and a storage bag. With 108dB sensitivity and 32-ohm impedance, he describes them as easy to drive.
Overall Assessment
ICYGENIUS considers the HIDIZS ST2 PRO 3.5mm a successful dynamic IEM with a mature and universal sound. The 3.5mm edition suits listeners who already have a DAC or player, while he recommends the USB-C version for convenient direct smartphone use.
Those seeking overwhelming bass may want something more aggressive. For listeners who prefer controlled lows, energetic mids, detailed but comfortable highs and a natural stage, ICYGENIUS sees the ST2 PRO 3.5mm as an appealing everyday choice.
Leave a comment
This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.