With the Soltanus Acoustics Electrostatic Headphone Driver unit, we ensure the required High-Voltage audio signal necessary for the electrostatic headphones. The design is the simplest and robust as possible, with high-quality built-in materials to match the outstanding electrostatic sound quality. This device with its uncolored sound leaves you the freedom in choosing the amplifier or headphone amplifier just to your taste. There are no additional unnecessary electronics integrated, only the two audio transformers and a simple power supply to make the signal path simple. Our Audio step-up transformers are wounded by hand to ensure the highest quality in the high-frequency range and use extremely oversized cross-section cores, which enables high impedance and outstanding low-frequency reproduction. The housing is made from solid 6mm and 3mm aluminum alloy sheets, preventing vibrations or generating any eddy currents by transformers. The housing can be used vertically, to use it as a headphone stand, and horizontally too, as usual.