Is a dual sealed,ported or bandpass sub is good for a car?

[Tony.ca]

Hi evry 1,

I wanted to build a dual 12" sub for my car.Just wanted to know which is the best suitable enclosure to stick with. I listen to all types of muzik. can anyone please give some suggestions.


thanx,

Tony

 

[JOE DIRT®]

Hi Tony...your a neighbor....tell us what vehicle your planning on a sub for

Cheers!!The DIRT®

 

[zx3chris]

if you plan on building the bandpass yourself---it will be very very large. the bandpass boxes you see at flea markets and online are prefabricated, and a bandpass for a sub must be built very close to spec.. it is quite difficult and if this is your first time building, i would not suggest it--- also, why bandpass?? looks, or u want the extra gain out of it?? if u want to be loud--just go ported.. the difference is negligable in most cases

-chris

 

[Tony.ca]

thanx guys,

Just wanted to know which enclosure would be the best for all types of muzik and my car is honda accord 2000 model.I think I shd stick to the sealed sub. will it give me more space in the trunk?
thanx,



Tony

 

[Magnetmaz]

I think sealed is the best way to go. I have 2 x 12"s, in a sealed box.

What are the brand 12"s, and do you have the T/S specs for them to custom build a box to the right size?

-Maz

 

[zx3chris]

sealed is the easiest to make sound good.. so go that route.. especially since you are building it yourself--and if you arent the best builder, you can be off by as muhc as 20% air space volume and not hear a difference

good luck

-chris

 

[Tony.ca]

I am using the earthquake 12"s what will be your opinion if I can go with the passive radiator enclosure.I do have the t/s para for these,will the passive radiators make the box much smaller or bigger.


Tony

 

[RobM]

Depends upon the sub. For a low Qts, high Fs sub you want a ported enclosure (avoid those subs for SQ use anyway...), and for a mid Qts, low Fs sub use a sealed. There's no great benefit to a bandpass and substantial drawbacks.

 

[Doug]

enclosure choice

Depends upon the sub. For a low Qts, high Fs sub you want a ported enclosure (avoid those subs for SQ use anyway...), and for a mid Qts, low Fs sub use a sealed. There's no great benefit to a bandpass and substantial drawbacks.

Actually, weather or not a driver is suited for a closed or vented box is usually based on the EBP ( Efficiency Bandwidth Product ). To calculate the EBP the formula is EBP = Fs divided by Qes. EBP values of 50 and below indicate closed boxes only. EBP values above 50 and especially approaching 100 indicate that the driver will perform better in a ported design.

To say to avoid subs for SQ use isn't correct as you have not indicated if you want sound quality or the boomy " one note bass " that is so popular these days. Basically, you can buy any woofer you want to and design an enclosure for SQ or resonant one note bass.

Doug

 

[onebadziggy]

Can you post the parameters and/or model number of this subwoofer?

 

[Doug]

Can you post the parameters and/or model number of this subwoofer?

Yes it would help to know the model number




http://www.earthquakesound.com/options.htm

 

[Tony.ca]

I am using the BALLS 12" drivers

 

[Doug]

Thiele/Small

I checked the Model number for your drivers on their website and they don't seem to publish the complete Thiele/Small parameters. Would you have them in the box that the woofer came in? If you have them, could you post them on this forum.

In the mean time, I've emailed them to see if I could get the parameters.

Hey, I'm just up the road from you, in fact I was in Brampton last weekend.

Doug