Electrostatic headphones are frequently considered the most transparent, natural, detailed sounding listening devices possible. This is due to the extremely quick transient response of their ultra-thin driver elements, which unlike traditional headphone and speaker drivers, lack heavy wire coils and magnets. Instead, the electrostatic driver is charged with a high DC bias voltage (typically 580V on most models), and moves in response to a high voltage electric field created by opposing stators on either side.
The small acoustic space of a headphone or earphone enables the electrostatic driver to cover the full audible spectrum without crossovers, making for an incredibly transparent and low-distortion sound. Bass can be tricky for electrostatic headphones, however it has improved greatly in recent years on models, particularly like the Dan Clark Audio Voce (MrSpeakers Voce) and STAX SR-009S.
All electrostatic headphones require a dedicated high-voltage amplifier, like our flagship Blue Hawaii SE, to produce their sound. Hence they do not come with a standard headphone plug on their cables.