Click here to purchase the entire book in PDF format. Advantages - The diaphragm can be very thin, making it practically massless - or at least approaching the mass of the air it's moving. This in turn, gives electrostatic loudspeakers a very good transient response due to an extremely high high-frequency cutoff. - You can see through them (this impresses visitors) - They have symmetrical distortion - we'll talk a little more about this in the following section on enclosures.