Loudspeaker

SAE Institute Glasgow The Dynamic Moving Coil Loudspeaker: Design and principle of use – an audio engineer's best friend Sergiusz Sytniejewski 16145 AF0911 Submission date: 11 September 2012 TABLE OF CONTENTS Page Introduction3 1. Driver plus box equals loudspeaker4 1.1. Driver5 1.2. Cone6 1.3. Surround7 1.4. Rear suspension (spider)8 1.5. The chassis8 1.6. Voice coil assembly9 1.7. Magnet10 2. Baffles10 2.1. Infinite baffle11 2.2. Ported enclosure11 2.3. Drone cone11 2.4. Bandpass cabinet12 3. Crossover12 4. Conclusion12 5. References14 6. Bibliography14 Introduction You wouldn't think a loudspeaker and a car engine have a lot in common, would you? Well perhaps not a lot but they definitely share one important thing – both have seen almost no change to their fundamental form in decades. Of course technological progress has supplied them with more sophisticated materials. Hence nowadays they are more efficient than ever before. However, the car still uses a series of small sparks to get from point A to point B and we still use the speaker cone to move air particles. Period. But is it really that simple? Certainly not. Since I have limited knowledge of car engines, I will instead focus on the principles of functionality and design of dynamic moving coil loudspeakers. There are a great many different designs of loudspeakers – ribbon (which actually predate dynamic moving coil design), electrostatic, Heil air motion, plasma (ionic),…

Need an amp to boost your system so it doesn't skip a beat? Then this review is for you. Purchasing a new amplifier for your automobile can in fact be easy, fun, and cheap. Don't believe me, read on. There are plenty of options available for the car audio enthusiast, with many powerful models being priced under $100. A quality, mid level, car audio system can be very reasonably priced as long as you, the consumer, do some research on your own and shop around for the best deals. Read customer…

Music is something that everyone in the world can relate to. All cultures, races, and religions listen to music. The main way that people listen to music now is through their phones or with their computers. Anytime there is a social event, there is music playing in the back ground with the use of speakers. Speakers are the technology used today for most of your music needs because they can be connected to any type of phone. There is nothing worse than when you are at a party and suddenly there…

“Porphyria’s Lover” & “Neutral Tones”: The Sinister Similarities of the Speakers The loss of a loved one is perhaps the most difficult experience that humans ever come up against. The poem “Porphyria’s Lover”, written by Robert Browning, adds a sense of irony to this. At the most superficial layer, the speakers in both “Porphyria’s Lover” and “Neutral Tones”, written by Thomas Hardy, both deal with loss. The tones in “Neutral Tones” seem to be indifferent, or Neutral. The speaker of…

I am so thankful to hear those guest speakers talk about their life stories, the struggles they went through to get to the place they are today, and the beautiful souls each speaker has. Every single guest speaker was delightful, but if I had to choose my favorite it would be Bambi Shen. Maybe it was the fact that she went into depth with her life story because she had more time to do so, but it was a very inspiring story and I am glad I had the chance to hear it. She made me open my eyes to…

Best buy is a retail company that was discovered by Richard M. Schulze in 1966 that currently specializes in all types of electronics. Back than it was just one store located in Minnesota, called Sound of Music Inc. The store only focused on home and car stereos. Four years after the store opened, Schulze bought out his partner and began to expand the business on his own. The store was operating efficiently up until the 1980’s. Things really started to take off around this time, and in 1983 the…

Beats by Dre headphones are unique headphones recently released in the market. In some quarters, they are currently adjudged the best brand of headphones money can currently buy especially for persons who are serious with recording or are musicians themselves. Beats by Dre Headphones are sold by Dr. Dre’s company and it is also variously believed that coming from a professional and very successful musician himself, the headphones are engineered to meet the highest standards in the market –…

This is similar to a loudspeaker, it being simply an electronic sound amplifier. When you wear a behind the ear hearing aid, the microphone picks up sounds around you and turns them into an electric current. The amplifier then changes the size of the current to make it bigger. The loudspeaker then turns the boosted current back into a much louder sound. This louder sound continues to flow through the earmold into the person’s ear, making noises around the person much louder only in that person’s…

issues taking place. Protests in Japan, loudspeakers in Nigeria and the slums of India all offer this glimpse; by listening to their soundscapes, one can discover something about the different locations and how these sounds have different meanings…

I was glad I put on more deoderant than normal this morning and I really really really missed my Starbucks that I had left in my car. I was daydreaming about how refreashing a mint chocolate chip flavored frappucinno would taste right about now when the loudspeakers went off. Straighting up, I tried to hold back my nervousness about what would be coming next. I probably wasn't the only one who was thankfully the loudspeakers were earsplittingly loud so that we could hear the Official's message…