16-15ED1 Electrostatic Speaker DriverED1 Electrostatic Speaker DriverOverviewThe ED1 is a broadband electrostatic driver that produces incredibly flat frequencyresponses reaching far into the ultrasonic range. The ED1 is designed especially forTDT's ES series electrostatic speakers. The ED1 Electrostatic speaker driver can drivetwo ES series speakers and is powered off the zBus.The ED1 is a TDT System 3 device, and receives power from the zBus. It's twoinput BNCs accept input signals up to 10 Vpeak. The front panel gain control canbe used to the control overall signal level of both channels from 0 to -27 dB in 3dB steps. ED1 output is via two 4-pin, mini-DIN connectors, which carry both biasand signal voltages. The ED1 is designed to work exclusively with TDT ES serieselectrostatic speakers.While the ED1 will accept a 10V input, it is possible to overdrive and ES1 when theED1 is on the maximum gain setting. Always check that the output signal is notdistorted. If the signal is distorted, turn down the gain on the ED1 until the distortiondisappears. The SigCalRP software that is distributed with SigGenRP is useful formeasuring the frequency response of the ES1 and to measure the Total HarmonicDistortion (THD) of the speaker. SigCalRP also generates normalization curves thatcan be used to flatten the frequency response of the ES1.PowerThe ED1 Electrostatic Speaker Driver is powered via the System 3 zBus (ZB1PS).No PC interface is required.