Japanese brand Stax invented the electrostatic overears (aka 'earspeakers'), so it is fitting that Edifier, which acquired Stax in 2011, has launched a new product line inspired by the now-iconic cans, under the new Stax Spirit brand.
The Stax Spirit S3 headphones ditch pricey electrostatic technology in favour of innovative (and much more affordable) Planar technology. Planar combines the benefits of a dynamic and balanced armature driver to deliver "exceedingly detailed lower frequencies and clearer, more consistent high-frequency performance," according to Edifier.
At a claimed 80 hours, the battery life is something special (and presumably helped by the fact there's no active noise-cancelling on board). Not only that, but Edifier also says that a 10-minute charge will give you a staggering 11 hours of runtime – in that charging time, a lot of headphones can manage only an hour or two's playing time.
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