qdc EVOLVER lets you swap between 3.5mm and 4.4mm plugs

The qdc EVOLVER Iridescent comes with one cable and interchangeable 3.5mm and 4.4mm plugs, letting you match it to a compatible player or headphone amplifier. Jointly developed by qdc and Japanese distributor aiuto, the wired in-ear monitor was announced on October 19 and launches in Japan on October 24, 2026, for ¥38,500 including tax.

Match the plug to your player—and the pins to your earphones

The supplied straight plugs use a screw-lock fitting: 3.5mm for an unbalanced output, or 4.4mm for a compatible balanced output. Swapping plugs does not make an incompatible output balanced or guarantee better sound. A phone with only USB-C needs a suitable separate DAC; these are analog plugs, not USB-C adapters.

At the earpieces, EVOLVER uses flat 0.78mm 2-pin connectors rather than qdc’s usual 2-pin shape. When replacing the cable, check both the pin diameter and connector shape, and do not force a mismatch. Thinner pins can slip out, while thicker ones can damage or loosen the socket.

A dynamic driver and MST share one axis

Each earpiece combines one dynamic driver and one MST, or magnetostatic, driver in a new 10.6mm coaxial assembly. qdc describes the dynamic section as providing the low end and the MST tweeter as contributing the mid-to-high range. The brand positions EVOLVER as a step-up from its entry-level SUPERIOR.

Color that changes with the light

The Magic Powder faceplate changes its appearance with the lighting and viewing angle. The ergonomically shaped shell is a universal design, not a custom ear mold, so its fit will still depend on your ears.

Both single- and double-flange ear tips come in S, M and L sizes, alongside a semi-hard carrying case. Start by checking the output on your current player, then try different tip sizes when you have a chance to audition the earphones.