Are electro-mechanical parameters necessary?

[Ace11]

Hey I wanted to know if its possible to build a ported enclosure for a subwoofer driver without knowing its electro-mechanical Thiele/small values.

Any help is appreciated! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

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[Worlddre 5,000+ posts]

Is it possible? Sure. However it is impossible to model how the sub will perform in said enclosure without those values. Just building an arbitrarily sized and tuned enclosure may give you the best results ever if you get lucky but if you dont you could be way off and end up with a sub and enclosure combo that is performing way worse than its capable of. What sub in are you trying to use typically someone can track down the T/S

 

[los33 10+ year member]

This would take multiple boxes to fully get an accurate box or close.

Some subs like big space with short vents others like large vents.

The easiest way is make an aero port enclosure and keep the box size to standard sub size specs.

8 = .75-1.3cuft, 10 = 1.5-1.8 etc....

(These were just examples and not true sizes)

Sent from my Z970 using Tapatalk

 

[adulbrich 5,000+ posts]

If you're really serious about it, send the sub in to Sundown or somewhere that can pull t/s parameters.

Otherwise, just build a bunch of boxes.

I would build a box and then tune with an aeroport

 

[Ace11]

Is it possible? Sure. However it is impossible to model how the sub will perform in said enclosure without those values. Just building an arbitrarily sized and tuned enclosure may give you the best results ever if you get lucky but if you dont you could be way off and end up with a sub and enclosure combo that is performing way worse than its capable of. What sub in are you trying to use typically someone can track down the T/S

This would take multiple boxes to fully get an accurate box or close.
Some subs like big space with short vents others like large vents.

The easiest way is make an aero port enclosure and keep the box size to standard sub size specs.

8 = .75-1.3cuft, 10 = 1.5-1.8 etc....

(These were just examples and not true sizes)

Sent from my Z970 using Tapatalk

If you're really serious about it, send the sub in to Sundown or somewhere that can pull t/s parameters.
Otherwise, just build a bunch of boxes.

I would build a box and then tune with an aeroport

Its not a car sub. I have this sub from my PC's 2.1 system. One of the satellite doesn't work anymore so wanted to remove the amplifier from the bandpass box that its in and make a new enclosure for the sub so that I can place it away from a wall power socket. Its a 4" driver rated at 20 RMS according to the manufacturer's specs. Even though its a small driver it can play frequencies as low as 30-35 Hz. So I thought would be worth it to build a ported box for it to make the bass sound more natural.

Edit: I will take a look at how aero port subs are built.

 

[los33 10+ year member]

Its not a car sub. I have this sub from my PC's 2.1 system. One of the satellite doesn't work anymore so wanted to remove the amplifier from the bandpass box that its in and make a new enclosure for the sub so that I can place it away from a wall power socket. Its a 4" driver rated at 20 RMS according to the manufacturer's specs. Even though its a small driver it can play frequencies as low as 30-35 Hz. So I thought would be worth it to build a ported box for it to make the bass sound more natural.
Edit: I will take a look at how aero port subs are built.

It is the same concept except you have a controlled enoviroment instead of a changing enoviroment.

All those home theater subs have boxes built nearly the same, but mainly aero ports.

Sent from my Z970 using Tapatalk