Advertisement
Quick Links
MF1 Multi‐Field Magnetic Speakers
Overview
TDT Multi-Field Magnetic Speakers offer high output and fidelity over a wide
bandwidth and deliver more power at lower frequencies than our electrostatic
speakers. They are well-suited for laboratory species with lower frequency hearing
and for noise exposure studies.
A detachable tip allows them to be configured for either free- or closed- field use.
The closed-field configuration incorporates an internal parabolic cone designed to
maximize output and minimize distortion. The tip is tapered for use with 1/8" O.D.
PVC tubing. The mono speaker is provided with two 10 cm tubes and the dual
speaker set is provided with four 10 cm tubes.
Note:
An Ear Tip for direct application (no tubing required), is also available.
Speakers feature a rugged aluminum housing and a built-in, 8-32 threaded hole for
use with standard laboratory mounting hardware. The mono speaker includes an
aluminum stand and the dual speaker set includes a variety of aluminum mount/base
fittings for easier positioning.
Each MF1 kit (serial number > 1200) also includes a USB drive containing several
speaker-specific closed field and free field calibration curves (TCF files) made
during final testing at TDT. These files were designed to be used with the BioSigRZ
software. When using the MF1 speakers above 30kHz in free field mode, TDT
recommends using the speaker-specific TCF files in place of the generic speaker
curves provided in the BioSigRZ installation (stored, by default, at
C:\TDT\BioSigRZ\TCF).
The speakers can be driven directly from the RZ6 or using either TDT's SA1 or SA8
stereo amplifiers. The speaker input carries both bias and signal voltages from the
stereo amplifier.
MF1 Multi-Field Magnetic Speakers
16-3
Advertisement
Related Manuals for TDT MF1-M-Mono
Summary of Contents for TDT MF1-M-Mono
- Page 1 BioSigRZ installation (stored, by default, at C:\TDT\BioSigRZ\TCF). The speakers can be driven directly from the RZ6 or using either TDT’s SA1 or SA8 stereo amplifiers. The speaker input carries both bias and signal voltages from the stereo amplifier.
-
Page 2: Multi-Field Configurations
16-4 System 3 Part Numbers: MF1-M—Mono MF1-S—Dual (two speakers) Multi‐Field Configurations The MF1 speaker is comprised of the free-field speaker and a closed-field adapter, a tapered tip, and line filter for closed-field use. An RCA to BNC adapter and stand are also provided. Using the MF1 for Free Field Operation The MF1 main speaker component can be used for free-field sound production. - Page 3 System 3 16-5 To configure the MF1 for closed-field: Ensure black o-ring is in place on back of CF adapter, as shown. Attach the CF adapter to the front of the speaker using three of the provided 1/4 x 4-40 hex screws. 2.
-
Page 4: Closed-Field Speaker Design Considerations
16-6 System 3 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. - Page 5 System 3 16-7 Free field measurements typical at 10 cm using +/‐ 1V input. Closed field measurements typical for approx 0.1cc eartip coupler using +/‐ 1V input. MF1 Multi-Field Magnetic Speakers...
- Page 6 16-8 System 3 MF1 Multi-Field Magnetic Speakers...