Help designing my sub stage

[THEKINGsBACK]

Ray, on 02 June 2007 - 11:59 AM, said:

Well...

ray said this a while ago in the section concering cone area

Not all woofers are created equal.

So, some have larger surrounds, etc making the effective cone area less.

You need to go by the effective cone area for that woofer x its xmax, to get linear displacement. "cubic liters of air"

Displacement is what we are looking for in bass. The more displacement there is = the more air being moved. Since bass is all about moving air, that means you will be louder.

If everything is done correctly.

The very first thing I look at in a woofer is displacement, then bl, the qts,qes, then power.

Hope i didnt confuse anyone.

Im done for now.

so let me ask this should i be looking for something with 4 12s which would give me an area of 452.39( also never had 4 twelves before either) because in the right enclosure i could make this louder than say anything else i could fit in my alloted area."in theory"

[hdorre]

4 12s have 452.39 squared inches of cone area and 2 15s have 353.49 squared inches. The difference is an equivalent of a 5.6 inch speaker.

You won't notice an audible difference if either setup is in the optimum enclosure. There will only be a noticeable difference on the TL.

But in theory, more cone area on the same power will get louder.

[THEKINGsBACK]

4 12s have 452.39 squared inches of cone area and 2 15s have 353.49 squared inches. The difference is an equivalent of a 5.6 inch speaker.

You won't notice an audible difference if either setup is in the optimum enclosure. There will only be a noticeable difference on the TL.

But in theory, more cone area on the same power will get louder.

but will the 4 woofers displace more air? thats really what im looking for

[hdorre]

4 12s have 452.39 squared inches of cone area and 2 15s have 353.49 squared inches. The difference is an equivalent of a 5.6 inch speaker.

You won't notice an audible difference if either setup is in the optimum enclosure. There will only be a noticeable difference on the TL.

But in theory, more cone area on the same power will get louder.

but will the 4 woofers displace more air? thats really what im looking for

Depends on the subs. For example, 2 AA/SMDs on 20kwrms will move more air than 4 Alpine Type Rs. But, 4 XLs will also move more air than 4 Kicker CVRs.

Depends on sub and power lol.

[THEKINGsBACK]

4 12s have 452.39 squared inches of cone area and 2 15s have 353.49 squared inches. The difference is an equivalent of a 5.6 inch speaker.

You won't notice an audible difference if either setup is in the optimum enclosure. There will only be a noticeable difference on the TL.

But in theory, more cone area on the same power will get louder.

but will the 4 woofers displace more air? thats really what im looking for

Depends on the subs. For example, 2 AA/SMDs on 20kwrms will move more air than 4 Alpine Type Rs. But, 4 XLs will also move more air than 4 Kicker CVRs.

Depends on sub and power lol.

right now im debating on tryin 4 re se's for a while since im impatient.. its just about having a 2 un-opened woofers and a orion 2500d staring you in the face that says TEMPORARY SET-up lol

[hdorre]

I've heard lots of bad stuff about RE. I've heard many times that they're made with cheap materials. Idk if its true though.

I'd probably do a temp setup to lol. I probably couldn't resist not setting it up

[THEKINGsBACK]

I've heard lots of bad stuff about RE. I've heard many times that they're made with cheap materials. Idk if its true though.

I'd probably do a temp setup to lol. I probably couldn't resist not setting it up

yea i just took a look back over this past year. and dammit.. i now know how a dope head feel about drugs cuz i feel the same damn way about car audio... i need therapy

[hdorre]

I've heard lots of bad stuff about RE. I've heard many times that they're made with cheap materials. Idk if its true though.

I'd probably do a temp setup to lol. I probably couldn't resist not setting it up

i now know how a dope head feel about drugs cuz i feel the same damn way about car audio... i need therapy

Haha, you aren't alone

[EricM9104]

I've heard lots of bad stuff about RE. I've heard many times that they're made with cheap materials. Idk if its true though.

I'd probably do a temp setup to lol. I probably couldn't resist not setting it up

yea i just took a look back over this past year. and dammit.. i now know how a dope head feel about drugs cuz i feel the same damn way about car audio... i need therapy

dope's worse...

[bassl0va]

4 12"s should have more motor force than 2 15"s, unless you were comparing 4 lvl 5 12"s to 2 Sony xplod 15"s. Haha

Go for the 4 12"s tune to 35hz, make sure the port has sufficient area and is squarer (like hdorre said) and make sure that the port is it's height (at least) away from the back inside wall of the vehicle.

EDIT: about the RE subs, they are made in china or something now, so they aren't as good as they use to be. The MX, MT and XXX are still the same as they use to be I think though. So you'd be safe with them.

Edited December 13, 2010 by bassl0va