Headphones — HiFiMAN Susvara

HiFiMAN's Susvara uses planar magnetic drivers in open-back cups that sit over the ear. HiFiMAN is a Chinese manufacturer that specialises in this driver technology, and the Susvara heads the brand's headphone catalogue.

Key specs that matter

HiFiMAN rates the response from 6Hz to 75kHz, so it goes far past the limits of hearing at the low and high end. Sensitivity is a low 83dB per milliwatt and impedance is 60 ohms, so the Susvara needs considerably more voltage and current than most rivals to reach comfortable listening levels. It is wired only, with 3.5mm connectors, and at 450g it is heavy for an over-ear model, though not unusual among top planar designs.

Pairing

The Susvara calls for a high-power headphone amplifier, and a phone or portable source will not drive it properly.

Alternatives

HiFiMAN's Arya Unveiled is an open planar magnetic headphone with a more moderate sensitivity that makes amplifier matching easier.