TDT RZ2 Manual page 591

System 3 16-13
is provided as representative of the type of response that may be obtained in a
closed field.
In this case, the low end of the response (< 5 kHz) is enhanced over the free-
field response while the high end of the response (> 80 kHz) is attenuated.
Every experimental setup is unique. It is important to calibrate the response of
the speaker in each experimental setup.
Important! Modifying the EC1 or ES1 can result in unexpected changes in the transfer function.
All modifications to the EC1 or ES1 should be performed by TDT. If you need to be
30-60 dB lower than specifications, or if you have one of these devices, contact
TDT for assistance.
EC1/ES1 Electrostatic Speaker