Hardware

Systems

Software

Speaker

Electrostatic Speakers

Coupler Model TDT Electrostatic Speakers are designed specifically for ultrasonic signal production. Our patented electrostatic design utilizes a thin, flexible membrane with an extremely low moving mass. Unlike conventional speakers, these speakers distribute the driving signal homogeneously over the surface of the membrane. These special features produce a small, lightweight speaker with an excellent ultrasonic response and low distortion.

Available with or without a coupler, both models are easy to position and are particularly well suited for studies with small animals that have hearing in the ultrasonic range. The speakers are driven by the ED1 Electrostatic Speaker Driver and are provided with a 6 m connection cable.

Part numbers:
ES1 Free Field Electrostatic Speaker
EC1 Electrostatic Speaker—Coupler Model

Technical Specifications:

Frequency response:	ES1 +/-11 dB from 4 kHz to 110 kHz EC1 +/-9 dB from 4 kHz to 110 kHz
Weight:	22 g
Dimensions:	3.8 cm outside diameter x 2.6 cm deep
Typical output (9.9V peak input):	ES1 95 dB SPL at 10 cm, +/- 9.9 V 5 kHz signal EC1 90 dB SPL, +/- 9.9 V 5 kHz signal
Maximum output:	110 dB SPL at 10cm
THD (ES1 typical):	< 3% at +/- 4 V input.

See the Transducer Selection Guide for speaker comparison chart.