Universal IEMs with 13 drivers? FiiO’s FX17 integrates electrostatic and dynamic drivers, and balanced armatures in a ...

And that doesn’t even include the additional cost of an energizer (electrostatic headphone amplifier) that one requires to actually drive them – which can add at least $1,500 to the cost of the entire ...

In the majority of electrostatic speaker designs, the high voltage audio is created using a step-up transformer from a conventional audio amplifier designed for moving-coil speakers. It is ...