16-38 System 3
CF1/FF1 Magnetic Speakers
BNC cable from the FF1 or CF1 to one of the output BNC connectors on the SA1
as shown in the following figure.
If you are using the SA8 See
“SA8 Eight Channel Power Amplifier ” on page 16-
29
, for more information.
RoutineCareandMaintenance
Inspect speakers for visual damage prior to use. Exposure to high temperatures will
damage the speaker. The polymer used to construct the speaker’s housing is very
durable, however prolonged pressure, such as supporting the weight of the CF1 with
the speaker’s parabolic cone, may alter the original structure of the cone causing
possible distortion and undesirable effects.
Unlike the closed-field model the free-field model’s speaker is exposed and should
be carefully handled. Sharp objects could puncture the speaker membrane causing
damage to the unit.
If there is damage to the BNC connector or the speaker housing, contact TDT for
an RMA for repair.
ClosedFieldSpeakerDesign Considerations
All speaker configurations should be calibrated to your specific configuration. If you
are planning to deliver tone stimuli, SigCalRP can be used to normalize the desired
stimulus signals. For questions about normalizing other types of stimuli, contact TDT.
When using the CF1 speaker 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. Users should
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