The Shure KSE1500 Electrostatic Earphone System is a modern marvel of miniaturization. Usually, electrostatic systems are large panels—obviously not conducive to a personal sound system. What Shure has achieved is the same sound quality from a large system shrunk down into a system the size of a dime.
Electrostatic transducer systems work by having a diaphragm sandwiched between two pieces of metal. Those pieces of metal are electrified by the audio signal. That modulation of the metal plates’ charge causes the diaphragm to move, and it is that movement in turn moves the air around the diaphragm, which is what creates sound. In the case of the KSE1500, that diaphragm is virtually weightless, making it extremely responsive to the modulations. This type of a system is the closest you’ll get to how your ear works, so the sound quality is very natural, and intense. It’s also a perfect system to translate digital sound into analog, so you can use your smartphone, tablet, computer, or other electronic devices and still enjoy a superior sound.
The amplifier also features a D4-band parametric EQ with five preset settings. The controls are straightforward and simple, making navigation friendly and quick. The earphones are also sound isolating, with sleeves that block up to 37 dB of ambient noise. The innovation of the system also required developing a new cord that not only met the requirements of low capacitance, but also strong and flexible enough to be used for earphones.