Pentaconn Ear — Premium IEM Connector
Designed by Nippon Dics to fix the mechanical reliability problems of 0.78 mm 2-pin while keeping a cleaner aesthetic than MMCX.
Pinout
Pinout data not yet populated for this connector.
Specifications
| Diameter | 2.5mm |
|---|---|
| Pole count | 2-pole 2-pin |
| Signal topology | single-channel signal + ground |
| Intended use | Premium IEM detachable-cable termination |
About this connector
Pentaconn Ear is the IEM-side counterpart to the 4.4 mm balanced source connector — also developed by Nippon Dics, also under the Pentaconn brand. The design brief was a premium-feel, mechanically-reliable IEM connector that addressed the dual failure modes of older standards: the loosening MMCX socket and the bent / corroded 0.78 mm 2-pin.
Two contact pins inside a sleeved housing; gold-plated; rated for thousands of mate cycles. Adopted as the IEM-side standard on selected flagship IEMs — the tribrid flagship and the electrostatic IEM both use it.
Native pairing with the monocrystal silver IEM cable — both ends Pentaconn (4.4 mm source, Pentaconn Ear sink) for a fully spec-compliant signal chain.
Compatible parts (MPNs)
| MPN | Form | Termination | Plating | Price (USD) | |
|---|---|---|---|---|---|
| PE-CONN-C-01 | Cable plug, IEM-side | Solder | 24K gold over copper | $24 |