The ideal dimension

[tijan64]

I have a pair of speaker already bridged removed from an old samsung TV. As they look good for me, I like to build a wood box to re-use it. As I am more carpenter than an electronician. I like to know what should be the internal volume requested for an ideal wood-box.

Hear are the specifications found for those drivers

3001-001107 Samsung Speaker, ;20W,8OHM,95DB,1300HZ
3001-000279 Samsung Speaker, 30W, 8OHM, 91DB, 20HZ
capacitor 100v 2.2uf ( the crossover )

 

[Moondog55]

I don't think anybody can help you with such, as the information about your speakers isn't sufficient. Can you please tell us what size the little woofer is and if possible post pictures.
I'm guessing it is about 4 or 5 inches and if it is a sealed box of about 5 liters may be a safe bet

 

[picowallspeaker]

First you've got to ask what's the purpose of the box.
It's about separating the front emission from the back emission, which is in
acustical anti-phase- one side pushes, the other pulls ...

 

[Jay]

Just any reasonable size. But use sealed enclosure (no vent). The bigger the size, the more likely you get more bass. As simple as that.

 

[mondogenerator]

half truth. ^ you could end up with weak overdamped bass.

 

[picowallspeaker]

Let's put in the game also some acoustical absorbers like acrylic, wool, felt, cotton waste...

 

[Jay]

you could end up with weak overdamped bass.

It was a Samsung TV speaker system.

 

[Moondog55]

There are / were SO many types of speakers for TVs that without a picture it is difficult to make and better suggestion than a smallish sealed box.

Foam surrounds, paper surrounds, rubber surrounds, paper cone, poly cone round, oval, even a square one in an old TV I ripped apart years ago
All of them different and all pretty d' *** bad as far as Hi Fi goes

 

[Dissi]

Obviously a 4" woofer and a 7 cm closed cone tweeter:

JEB Electronics = JEB Tecnología S.R.L. - Los mayores asesores y proveedores de insumos para redes
Samsung 3001-001107 speakers .

 

[tijan64]

Here are some photos

 

[Moondog55]

Closed box of 3 to 6 liters depending on whether they are 3 or 4 inch woofers, stuffed of course

 

[picowallspeaker]

Or anything else, of course

 

[Moondog55]

The other alternatives might be a tall old fashioned transmission line type speaker or Voight pipe.
With an Fs around 70 - 100Hz you don't get much real bass from these tho

 

[picowallspeaker]

Also a double chamber reflex, where the 2nd chamber is double volume than the 1st ( they are in series), may bring some betterment to the classic TL.
The woofer has the volume of the 1st chamber as the real acoustic load, so
a faster response in the mid-low frequencies, and it's not influenced by the
larger resonances that happen in the 2nd chamber, which is tuned at lower frequency than the 1st.
Below Fs the woofer sees the two chambers as one, above it it 'sees' only the 1st, well stuffed.

 

[Moondog55]

I for one would not be bothered with all that boxwork for a $3- [ wholesale] woofer tho.
I have a dozen of these sort of driver in the shed I can't give away for $10- a pair on ebay although they make a decent midrange for party boxes or computer speakers

 

[picowallspeaker]

Moondog, BTW, it's dilettante, not dilletante


Whoops ! Dille-tante means ( in italian ) - Tell many ....

 

[murphythecat8]

I for one would not be bothered with all that boxwork for a $3- [ wholesale] woofer tho.
I have a dozen of these sort of driver in the shed I can't give away for $10- a pair on ebay although they make a decent midrange for party boxes or computer speakers

yeah, why does the OP wants to keep those drivers?

 

[Moondog55]

Moondog, BTW, it's dilettante, not dilletante


Whoops ! Dille-tante means ( in italian ) - Tell many ....

As against [ Do much ]?? Spell check never caught that LOL I may just leave it

 

[tijan64]

I am impress by all the discussion found under my first concern. It is already useful for me as I found a spreadsheet to help me in designing the box. I will also read more about thing you write. (a tall old fashioned transmission line type speaker or Voight pipe, ...a double chamber reflex )

I have no specific usage at that time for those speaker; but as I like to get a small lamp amplificator. It will be my first step. I am not looking for the big bang box but simply for for the one that can offer a good earing.

Here is a first draft for a 6 liter Canadian maple box made with boxycad2 (a nice tools)

Thanks everyone !