Bose Home Theater System

Karishma Purswani


Purpose

The fundamental purpose of this device is to project sound in all areas of the room/rooms so the sound is clear, rich, and smooth. This entertainment system can have sounds go down to a whisper or all the way up to as loud as inside a theater. There is a DVD player inside the system and you can connect other audio or video players to it, because it includes many inputs and outputs. The Bose Home Theater/Entertainment System amplifies and gives stereophonic sound.

Energy

Some energy transformations that are seen in its operation are acoustic waveguide wavelengths which send digital signals from several feet of tubes, to produce the sound. The CDs and DVDs we play in any music system transform the electrical signals from the CD/DVD, through an amplifier, into sound waves using air vibrations; air is the transmission medium in speakers. The vibrating air then sends sound waves into the atmosphere which reach our ear and we hear sound. So, the main energy conversion in the speakers of the Bose Home Entertainment System is the electrical energy into sound waves.

To know more information about the energy transformations in the Bose Home Entertainment System click here.

Controls

The Bose system is designed to have a remote controler which directs the DVD player, volume, and other inputs in the media center. The remote controller has many options such as changing the audio/video channels, the volume controller, options for which inputs to play such as CD, DVD, VCR, etc. and a recording menu.


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-the remote controler

Materials

  1. Speakers are essential parts of this device to form great quality sound. Speakers vary in size, shape, and price; the smaller and compact the speakers are, the more expensive they are and now days the Bose company is working on creating speakers that are hidden, but produce clear, and rich sounds. Most of the time the entertainment system includes five speakers with floor-standing, bookshelf, or in-wall units.
  2. A media center is also included with the system along with a CD/DVD player, an AM and FM radio tuner, and inputs to connect other components in the home entertainment system.There is also a digital AM and FM radio tuner, which can be played at anytime.
  3. An acousticmass module is part of the system as well as it delivers the clearity of pure sound and fluctuates the frequencies to match the volume, it also eliminates audible distortion. The acousticmass module controls the sound we hear from the speakers.
  4. Cables are included as well because they make it east to connect the system for perfect use.


Science

To produce great clear sound into small speakers, Dr. Bose and some other workers had to understand how little tubed instruments, such as flutes and clarinets, made enough sound to fill a large room. They realized that their loudspeaker would have to transform little amounts of air, input, which would enter the tube, and produce an output of sound. This transformation of mounting a loudspeaker into a tube is known as a waveguide. So they created a small driver which would produce clear sound without audible distortion, this device was inserted in the acoustimass module of the Bose system along with acoustic waveguide which was several feet long, and that's how it has small compact speakers that bring forth great loud sound.

To know more information about the science of the Bose Entertainment system click here.

Design

A typical device includes five small cube/retangular sized speakers, a main controlling system known as the acoustimass module, a remote controler, and an audio/video player with input and output connections known as the media center.

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-the media center ----------the front of the acoustimass module --the back of the acoustimass module


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-the center speaker ----------------------------the small side speakers-----------------the back of the media center

Evolution

It all started in the 1950s Dr. Amar G. Bose thought of creating this home theater system and it first came out in the 1960's, they had big loud speakers, but without natural sound. By 1975 the company had created concert like sound in book-self sized speakers. In the 1980's they changed the size of the speakers making them more compact and hidden almost anywhere in a room, and into better styles as well as colors. In the 1990's Bose introduced Lifestyle systems with elegant speakers. From 2000 till now, the company has been working on simplifying the surround sound system. These are some of the changes that have been made to the Bose Home Entertainment System over the years.

If you want to know more information about the evolution of the Bose Home Entertainment/Theater System, click here.

Related Devices

Competitors

Some devices serve a similar purpose are:

Partners

Some devices that work in conjunction with this device are:
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Siblings

Some devices that use the same scientific principle are:
  • Bang and Olufsen Home Entertainment System
  • Sony Home Entertainment System
  • Panasonic Home Entertainment System
  • Samsung Home Entertainment Sytem

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