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Systems

Magnetic Speakers

TDT Magnetic Speakers offer high output and fidelity over a bandwidth from 1 – 50 kHz. These broadband speakers have more power at lower frequencies than our electrostatic speakers, making them well-suited for laboratory species with lower frequency hearing. Their high output levels and broad bandwidth also make them excellent for noise exposure studies.

These 4 Ohm magnetic speakers are available in either free-field or closed-field models. The free-field model delivers signals of over 100 dB SPL with < 1% distortion over its entire bandwidth (+/- 4 V, 10 cm). The closed-field model has an internal parabolic cone designed to maximize output and minimize distortion. Its tapered tip can be inserted directly to the subject’s ear or fitted with the provided tubing and used with most standard ear tips.

Both models feature a rugged polymer enclosure with a stable base as well as BNC input connector and a built-in, ¼”-20 threaded post for positioning with standard laboratory mounting hardware.

The CF1 is provided with 6” of 1/8” O.D. PVC tubing.

TDT Magnetic Speakers can be driven using either TDT’s SA1 or SA8 stereo amplifiers.

Part numbers:
FF1: Free-Field Magnetic Speakers
CF1: Closed-field Magnetic Speakers

Technical Specifications:

Frequency response:	FF1 +/- 8dB from 1 kHz to 50 kHz CF1 +/- 24dB from 1 kHz to 40 kHz
Crossover Frequency:	500 Hz High Pass
Typical output:	FF1 108 dB SPL at 10 cm ( +/- 4 V peak input) CF1 110 dB SPL ( +/- 1 V peak input)
THD ( typical):	<= 1% from 1kHz to 50 kHz
Weight:	FF1 ~550G CF1 ~590G
Dimensions:	FF1 3” outside diameter x 1.5” deep CF1 3” outside diameter x 3.5” deep

FF1 measurements typical at 10 cm using +/- 4 V input.

CF1 measurements typical closed field, approx 0.1cc pvc tube coupler using +/- 1V input.

Not sure if you need the TDT electrostatic or magnetic speakers? View the
Transducer Selection Guide.