Saturday, November 7, 2009
Bracing notes
Bracing the speakers will counteract wood bendage(flexing). This is an acoustic treatment that allows the box to stop flexing when waveforms are reproduced inside it. The bass speaker uses alternating voltage to reproduce frequency. Because of the polarity, opposing forces attract and like forces repel, so this produces a frequency out the speaker between 20 hz - 20khz.My speakers are braced
Thursday, November 5, 2009
Thursday, October 29, 2009
Thursday, October 22, 2009
Problems I Encountered
Bracing – I had trouble with bracing my speakersb but after talking with terry I was instructed in the right direction and was able to sucssesfully brace my speakers
Bendy Ply – When attatching my second layer of bendy ply I found when srewing the ply onto the speakers that the screws were colling wigth pre existing screws.However I switched from screws to nails and this allowed me to correctly attach the second ply
Sanding With Belt Sander – When removing the “trim” that was around my speakers from the bendy ply I found I could not completely get rid of it with just the belt sander, so after removing as much as I could with the belt sander I used a palm sander to remove the existing trim. The palm sander allowed me to make the ply sit flush with the faces of my speaker.
Painting – I had to sand back layers of paint to get a smooth finish on my speakers. Alo any drips which were formed when being sprayed had to be removed .
Bendy Ply – When attatching my second layer of bendy ply I found when srewing the ply onto the speakers that the screws were colling wigth pre existing screws.However I switched from screws to nails and this allowed me to correctly attach the second ply
Sanding With Belt Sander – When removing the “trim” that was around my speakers from the bendy ply I found I could not completely get rid of it with just the belt sander, so after removing as much as I could with the belt sander I used a palm sander to remove the existing trim. The palm sander allowed me to make the ply sit flush with the faces of my speaker.
Painting – I had to sand back layers of paint to get a smooth finish on my speakers. Alo any drips which were formed when being sprayed had to be removed .
Evaluation
Description of Process
The shape I chose for my speakers was a wave like shape. I decided to use this particular shape because I wanted to create a set of speakers that weren’t the traditional square or rectangular shape, therefore I chose to stick with my O.G design.
At the start of the building process I cut out of MDF two front plates and two back plate that were the wave shape. Then I cut two more for the middle of each speaker.
On two Faces i cut out the with a circle cutter the holes for the sub, tweeter (55mm) and two ports (45mm)
I then started to cut out forty braces (8cm x 2cm) for each speaker to give it strength.
Then I insulated the speakers by stapling carpet underlay to the inside.
Now it was time to add bendy ply to the speakers.
So I glued the bendy ply to the cabinets then nailed it down.
After each cabinet had one layer of bendy ply on them I added one more layer to the cabinet so the speakers were more sturdy and insulated.I know had completed most of my cabinet.There was alot of scuffs and dents in each cabinet so i had to bog my speakers up.
The bogging process took a while. I would bog then sand then do it over and over again until all dents were flat and smooth as.
After all the bogging and sanding was complete it was time for the first layer of primer.
After priming I sanded the speakers to give them a smooth finish.
Then the first coat of black was sprayed on.
I had to sand back any drips that were present. After that the final coat Was sprayed.
The shape I chose for my speakers was a wave like shape. I decided to use this particular shape because I wanted to create a set of speakers that weren’t the traditional square or rectangular shape, therefore I chose to stick with my O.G design.
At the start of the building process I cut out of MDF two front plates and two back plate that were the wave shape. Then I cut two more for the middle of each speaker.
On two Faces i cut out the with a circle cutter the holes for the sub, tweeter (55mm) and two ports (45mm)
I then started to cut out forty braces (8cm x 2cm) for each speaker to give it strength.
Then I insulated the speakers by stapling carpet underlay to the inside.
Now it was time to add bendy ply to the speakers.
So I glued the bendy ply to the cabinets then nailed it down.
After each cabinet had one layer of bendy ply on them I added one more layer to the cabinet so the speakers were more sturdy and insulated.I know had completed most of my cabinet.There was alot of scuffs and dents in each cabinet so i had to bog my speakers up.
The bogging process took a while. I would bog then sand then do it over and over again until all dents were flat and smooth as.
After all the bogging and sanding was complete it was time for the first layer of primer.
After priming I sanded the speakers to give them a smooth finish.
Then the first coat of black was sprayed on.
I had to sand back any drips that were present. After that the final coat Was sprayed.
Thursday, October 15, 2009
Thursday, September 3, 2009
Tuesday, August 25, 2009
Tuesday, August 18, 2009
Tuesday, August 4, 2009
Tuesday, July 28, 2009
Tuesday, July 21, 2009
Thursday, July 2, 2009
standing wave notes
Standing waves are waveforms that stand on the edge of the front plate, lingering around and not dispersing properly. As they linger they interfere with other waveforms and cancel them out, resulting in a bassless speaker response. To counteract standing waves, you must round the edges of the front plate. This disperses standing waves outwards as they hit the edge of the front plate.
Notes
Port And Cartpet Underlay Notes
The port acts like an interface between the inside of the box and the outside world. It counteracts the moving of the voice coil which is moving in and out via. magnetism.Carpet Underlay absorbs frequency inside the box. Low frequency inside the boxes will bounce off the sides of the box, colliding with other frequiencies that need to be reproduced. This results in the bass being canceled out and the speakers sounding 'tinny'. Carpet underlay thus allows the bass to be reproduced.
Bracing Bracing Notes
Bracing the speakers will counteract wood flexing. This is an acoustic treatment that allows the box to stop flexing when waveforms [frequency] are reproduced inside it. Polarity uses alternating voltage to reproduce frequency. Opposing forces attract and like forces repel, so this produces a frequency out the speaker between 20 hz - 20khz.
The port acts like an interface between the inside of the box and the outside world. It counteracts the moving of the voice coil which is moving in and out via. magnetism.Carpet Underlay absorbs frequency inside the box. Low frequency inside the boxes will bounce off the sides of the box, colliding with other frequiencies that need to be reproduced. This results in the bass being canceled out and the speakers sounding 'tinny'. Carpet underlay thus allows the bass to be reproduced.
Bracing Bracing Notes
Bracing the speakers will counteract wood flexing. This is an acoustic treatment that allows the box to stop flexing when waveforms [frequency] are reproduced inside it. Polarity uses alternating voltage to reproduce frequency. Opposing forces attract and like forces repel, so this produces a frequency out the speaker between 20 hz - 20khz.
Thursday, June 25, 2009
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