Loudspeakers: An Engineering Analysis

1
LoudspeakersAn Engineering Analysis

• UEET 101 Section 2
• Team 9

• Team Members
• Chris Lueders
• Kevin Leach
• Christopher Daniel
• Antonio Boyd
• Ashan Ali Qureshi

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LoudspeakersTypical Dynamic Loudspeaker
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LoudspeakersMechanical Engineering Aspects

• Enclosure Design
• Material Choice
• Appropriate design for minimum resonance
• Shielding
• Magnetic Field
• Interference

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LoudspeakersElectrical Engineering Aspects

• Crossovers
• Split up incoming frequencies and sends them to
  appropriate type of speaker.
• Tweeters 2000Hz
• Mid-Range 2000Hz -200Hz
• Woofers
• Once set it becomes permanent part of the speaker
  system and cannot be changed

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LoudspeakersIndustrial Engineering Aspects

• Coordination between Mechanical and Electrical
  Engineers
• Making sure user friendly and practical
• Placement within other items (TVs etc.)
• Assembly process
• Appearance and Placement

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LoudspeakersDesign Flow Chart
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LoudspeakersImprovement Aspects

• Enclosure
• Three Compartments
• Tweeter Sealed Enclosure
• Midrange Sealed Enclosure
• Subwoofer Transmission Line Enclosure
• All compartments lined with Dynamat
• Polypropylene diaphragm
• Monster Cable Ultra Series THX 1000 speaker
  cables

Tweeter (Sealed Enclosure)
Midrange (Sealed Enclosure)
Subwoofer (Transmission Line Enclosure)
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LoudspeakersConclusions

• After improvements
• Excellent Sound Quality
• Slight increase in price
• Minimal chances for interference

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LoudspeakersReferences

• About Industrial Engineering. Iienet.org. 23
  September 2004. cles/index.cfm?cat840.
• Harris, Tom. How Speakers Work.
  Howstuffworks.com. 22 September 2004.
  
  .
• Learning about Speakers. Audiovideo101.net. 22
  September 2004. n/knowit/speakers.
• Littler, John. Speaker A Players Guide. 26
  May 2000. Mstation.org. 22 September 2004.
  .