Headphones — Stax SR-003MK2

The SR-003MK2 is a distinctive electrostatic in-ear headphone from Stax, built with an extraordinary sensitivity. The SR-003MK2 brings Stax's legendary electrostatic driver engineering to an unusual in-ear electrostatic format.

Key specs that matter

The transducer uses electrostatic or planar-magnetic driver technology in an open-back, in-ear, wired configuration - a rare combination given electrostatic technology's typical association with over-ear designs. Frequency response spans 20Hz to 20,000Hz within plus-or-minus 10dB. Sensitivity is an extraordinary 110dB SPL at 1kHz/1mW. Weight is a remarkably light 38g.

Sound and use context

Expect the exceptionally fast, detailed character Stax's legendary electrostatic driver technology is broadly celebrated for, delivered in this rare in-ear electrostatic format.

Pairing

As with all Stax electrostatic headphones, the SR-003MK2 requires a dedicated electrostatic headphone amplifier rather than a conventional headphone output.

Alternatives

Stax's own over-ear electrostatic catalogue, including the SR-L300 and SR-007MK2, offers alternatives in the more conventional over-ear format.