how to make a speaker box?is there any dimensions in making a box of a speaker?

Answer 1

If you want the sound quality of a home made speaker somebody built in the 1970s, follow the previous posts advice. Basically those are just big wooden shoe boxes with tuned ports & cut outs to mount speakers.

If you want to build the best speaker you can build, build a Bill Fitzmaurice designed speaker.

I built a pair of these speakers for my home stereo.
"David" floor standing speaker
http://www.billfitzmaurice.com/david.html

I also built a pair of these subwoofers for my PA system.
Tuba 36 subwoofer
http://www.billfitzmaurice.com/t36.html

It does take a lot of patience though, building speakers is not a project you're going to finish in one day.


http://www.billfitzmaurice.com/

"Our DIY speakers offer performance features not available on store-bought speakers, yet they cost less, saving as much as 75% over off-the-shelf speakers that don't perform half as well. Building your own speakers is easy when you order plans from Bill Fitzmaurice Loudspeakers. All plans include a complete set of instructions and step-by-step photos of the construction process."

"ALL THUMBS?
If you can't build your own click on the Cabinet Builders link for a list of builders who can custom craft speakers for you, at prices well below what you'd have to pay for commercial speakers of lesser quality."



TLAH Home Theater Mains
http://www.billfitzmaurice.com/tlah.html

SLA Home Theater Center
http://www.billfitzmaurice.com/sla.html

Table Tuba Home Theater Subwoofer
http://www.billfitzmaurice.com/tt.html

AutoTuba
http://www.billfitzmaurice.com/autotuba.html

DR250 for electric bass, keyboards or main PA
http://www.billfitzmaurice.com/DR250.html

Answer 2

The dimensions are most closely related to the woofer size. The midrange and tweeter speakers are directional and project sound right from the face of the box. The woofer, however, uses the space inside the speaker box to help reproduce lower frequencies. This is why you must carefully select dimensions that will give you an interior volume (cubic inches) that matches the size and type of woofer. But as the previous answerer mentioned it is a science and only part of your concerns. Making air tight, providing dampening material are all part of the recipe.
These two books are very helpful if you are truley interested. Both avail at Amazon.

1) "Designing Building and Testing Your Own Speaker System"
2) "Loudspeaker Design Cookbook" 7th Edition
(smaple projects are included in both books)

Answer 3

Bill Fitzmaurice Loudspeaker Design

Answer 4

Making a speaker box is a science. Consider pro boxes as inspiration and guidlines, make sure it has portholes and that all the seals are tight with glue or caulking, so your sound doesn't dissapate.

Answer 5

There are a few free computer programs around (you will have to search for them yourself.)
I used one some years ago. It was written in BASIC and was in a book, long out of print, published by RadioShack.
You will need to find out the resonant frequency of the cone/s, possibly by measuring. The method was explained in that particular book.

The volume and other details (port design for instance) of the enclosure depend greatly on these figures and the computer programs need them.

By the way, to "dampen" something is to make it slightly wet.

The previous correspondent means damping.
A lot of people get it wrong!