Closed-Field Speaker Design Considerations; Technical Specifications - TDT MF1-M-Mono Configuration Manual

16-6
Closed‐Field Speaker Design Considerations
When using the closed-field configuration for experiments, the provided PVC tubing
will transfer the signal best when it is kept straight. Note that the speaker
performance is dependent on the coupling system used and the ear of the subject.
All speaker configurations should be calibrated to your specific configuration. Technical
specifications measured under specific controlled conditions are provided for
comparison purposes.
Technical Specifications
Weight
Dimensions
Typical Output (+/- 1 V
peak input)
THD
Impedance
Max driving voltage
* Available on request.
MF1 Multi-Field Magnetic Speakers
Free Field ~216g
Closed Field ~277g
Outside Diameter
Depth Free Field
w/Tube Tip
w/Ear Tip*
Free Field 87 dB SPL at 10 cm
Closed Field 100 dB SPL in 0.1 cc coupler
<= 1% from 1kHz to 50 kHz
4 Ohms
75 W (for third party amps)
System 3
6.6 cm
3.6 cm
6.8 cm
7.1 cm