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ED1 Electrostatic Speaker Driver
ED1Electr ostaticSpeakerDriver
Overview
The ED1 is a broadband electrostatic driver that produces incredibly flat frequency
responses reaching far into the ultrasonic range. The ED1 is designed especially for
TDT's ES series electrostatic speakers. The ED1 Electrostatic speaker driver can drive
two 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 two
input BNCs accept input signals up to 10 Vpeak. The front panel gain control can
be used to the control overall signal level of both channels from 0 to -27 dB in 3
dB steps. ED1 output is via two 4-pin, mini-DIN connectors, which carry both bias
and signal voltages. The ED1 is designed to work exclusively with TDT ES series
electrostatic speakers.
While the ED1 will accept a 10V input, it is possible to overdrive and ES1 when the
ED1 is on the maximum gain setting. Always check that the output signal is not
distorted. If the signal is distorted, turn down the gain on the ED1 until the distortion
disappears. The SigCalRP software that is distributed with SigGenRP is useful for
measuring the frequency response of the ES1 and to measure the Total Harmonic
Distortion (THD) of the speaker. SigCalRP also generates normalization curves that
can be used to flatten the frequency response of the ES1.
Power
The ED1 Electrostatic Speaker Driver is powered via the System 3 zBus (ZB1PS).
No PC interface is required.
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