Headphones — Sivga Audio M300

The M300 is a wired in-ear monitor from Sivga Audio, a Chinese manufacturer known for accomplished driver engineering, built with strong sensitivity and a demanding impedance. The M300 brings Sivga's considered engineering to a closed, wired in-ear format.

Key specs that matter

The transducer uses dynamic or isodynamic driver technology in a closed, in-ear, wired configuration. Frequency response spans a wide 20Hz to 40,000Hz within plus-or-minus 10dB. Connection uses a standard 3.5mm jack. Sensitivity is a strong 109dB SPL at 1kHz/1mW, with impedance at a demanding 64 ohms - a notably high figure for an in-ear design. Weight is a remarkably light 29g.

Sound and use context

Expect exceptionally efficient reproduction reflecting the strong 109dB sensitivity, though the demanding 64-ohm impedance may benefit from a somewhat more capable source than the most modest portable devices.

Pairing

The demanding 64-ohm impedance benefits from a reasonably capable source or dedicated portable amplifier for optimal dynamic performance.

Alternatives

Sivga's own Nightingale Pro offers a lower-impedance alternative with balanced 4.4mm connectivity within the same broader in-ear catalogue.