MetkuMods

Project: GhettoBlaster

Portable Amplifier and Speaker Box
Author: Antti Hakala
Published: 12.12.2007
In English In English
Suomeksi Suomeksi

Intro

Situation - A demand for a portable and self powered audio solution. Two weeks time and 250 euros budget: realistic equation? Well luckily I had my brother sharing the cost of this project and giving a helping hand on the construction work.

The main idea of making a portable loud speaker system like this is to use sensitive speakers and high efficiency amplifier to keep the battery as small and light (and cheap) as possible. It will have only RCA input where audio source gets connected.

GhettoBlaster

Choosing the Drivers

 

Selecting the drivers for the GhettoBlaster
 

Reflex enclosure is a natural choice for a high efficiency system. I had three speakers to choose from. All were tested outdoors, a normal environment for a ghettoblaster. The idea was to find out which of the speakers had the best bass extension. Pioneers on the left were just horrible. (in the white box) They are designed to be used inside a car so their bass response outdoors is really weak and starts cutting off above 100 hz. Logitech's were okay but they are pretty power hungry so black Audio Pro's won this roundup. They are really sensitive speakers and deliver lots of sound. On the right you can see the crossovers and the drivers. My plan is to build new a case using the same volume and tuning frequency as the original boxes. They played so well outdoors, no need for changes.




Pages:  1 2 3 4 5 6 


 
  Content in english!
  Sisältö suomeksi!

 Google

 .:Notice!
En ota mitään vastuuta tuhoutuneesta tai hajonneesta laitteistosta tai sen osasta.

Disclaimer! I will not take any responsibility for any destroyed or damaged hardware.




Add to Technorati Favorites
add
add
add
add
add

 .:Back to top Bandwidth by Mpoli

Copyright © Metku.net, All Rights Reserved.
All content and graphics in MetkuMods are sole property of Jani Pönkkö and may not be reproduced or copied in any manner without written permission from him.
All brand names, trademarks and copyrights are the property of their respective owners.Privacy Policy