Headphones — Sivga Audio Nightingale Pro

The Nightingale Pro is a wired in-ear monitor from Sivga Audio, sitting alongside the M300 with a low impedance and balanced 4.4mm connectivity. The Nightingale Pro 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, matching the M300. Connection uses a 4.4mm balanced connector. Sensitivity is a strong 107dB SPL at 1kHz/1mW, with impedance at a low 16 ohms - considerably lower than the M300's 64 ohms. Weight is a remarkably light 14g.

Sound and use context

Expect exceptionally efficient reproduction reflecting the strong 107dB sensitivity combined with the low 16-ohm impedance, meaning this earphone reaches satisfying volumes readily from virtually any source, including modest portable devices.

Pairing

The balanced 4.4mm connector suits desktop or portable sources offering balanced output directly, and the low 16-ohm impedance makes this earphone easy to drive.

Alternatives

Sivga's own M300 offers a related model with the standard 3.5mm connector and a considerably higher impedance within the same broader catalogue.