3E20.10 - Loudspeakers

Code Number:
Demo Title:
Speaker Construction and Sound Reproduction
Area of Study:
Loudspeakers, coil and cones, magnets assemblies.

Show and tell the major parts and components of loudspeakers.

This speaker can be used to show large oscillations of the speaker cone.  Use 5 to 10 Hz. on the function generator.  The 600 watt amplifier will have to be turned all the way up to see to so oscillations that are visible in the large classrooms.  The speaker is rated to take this amount of wattage.  The best oscillations occur around 8 Hz.

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Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.