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At £400, Phonak’s PFE 232 earphones are some of the most expensive we’ve ever reviewed. Each earphone capsule has two balanced armature drivers to provide a detailed sound without any loss of bass or low mid-range. Balanced drivers have a moving armature which is perfectly centred in a magnetic field when there’s no current applied to it, but which twists one way or another in response to magnetic currents, vibrating the diaphragm it’s connected to. These tend to be smaller and require less power than standard dynamic drivers, which consist of a magnetic coil attached to the base of a diaphragm, but they tend not to have as wide a frequency range as well as less bass. The Audéo PFE 232s’ twin drivers help to mitigate this.
In the real world, almost no one needs to spend this much money on a pair of earphones. However, if you’re a musician, a producer or the sort of person who devotes their life to appreciating the finest subtleties of your favourite music, and if you have the money to spend, the PFE 232 earphones are among the finest in-ear models you can buy. This earns them an Ultimate award, but it’s worth noting that most listeners will be happy with the £80 Phonak Audéo PFE 012 Perfect Bass earphones instead.