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now instead of intentionally misinterpreting someone's post, he was asking if the SX has a rated power handling of 800 watts. Granted that's a thermal rating.

To answer though, yes the SX is more efficient than the XXX.
The SX is targeted more for SPL, and the XXX is made as a true SQL sub, aiming for high output SQ. This is indicated if you have a good understanding of the T/S specs for both speakers, looking at the BL curve, and the motor design for the XXX.
If you're after straight SPL, don't get a XXX or a Brahma.

audiofreak12 wrote:Isnt the SX more efficient too? It takes only 800wrms also so that might give you the ability to keep your stock alt and not cause too much trouble. Someone corect me if im wrong.

"takes" no woofer "takes" a certain amount of power... there is only varying level of effeciancies which can sometimes be offset by enclosure.

You can throw 200 watts on a XXX if you want... but it wouldnt be worth it to buy the XXX at that power point.

The SX is a very effeciant woofer at ANY power point... this being said... its probably the one of the best picks for most any street type install - if you can swing the $.

Isnt the SX more efficient too? It takes only 800wrms also so that might give you the ability to keep your stock alt and not cause too much trouble. Someone corect me if im wrong.

omietrice wrote:Hmmm, in the RE poduction line what model is the loudest? is it the XXX's? or is their another model thats better? also If I go one 12" brahma do you think that will be good if I gave it's right amount of wrms and then later on get another one?..Im still a little confused, soon I should have like 800$ but I'm not trying to waste all of it on sub/subs & amp alone..

SX will be the loudest in a typical "street" install.

according to Adire, the Brahma can reach full excursion with as little as 600wRMS "in the proper enclosure" meaning a specific design and volume made to their specs.
altering the box type or volume will affect power handling directly as always.

The XXX has a greater excursion than the Brahma, and generally likes to have more power. 1000-1200 watts is usually a good starting point with a XXX 12"

Hmmm, in the RE poduction line what model is the loudest? is it the XXX's? or is their another model thats better? also If I go one 12" brahma do you think that will be good if I gave it's right amount of wrms and then later on get another one?..Im still a little confused, soon I should have like 800$ but I'm not trying to waste all of it on sub/subs & amp alone..

mk1 and mk2 are slightly different. The mk1 has a 4 spoke basket, different dust cap, and slightly less xmax I believe. The T/S specs are close, but not identical.

but when you say the brahma would only need 600 RMS to be just as loud as a XXX..wouldnt that go by how big and how much close the specs of the box is to the subs specs? so if I had the perfect box for the XXX wouldnt I only need around 600 RMS or is it totally different?

Im sorry let me clear that up the xxx is rated to take 1600 rms before you get into trouble with the coil, the brahma mk1 and mk2 are the same thing


THE NEW BRAHMA MK3 has received a shorter voice coil and is going to handle less power 600rms.So my point was that the brahma is now going to compare with the xxx with only 600 rms so thats why i was suggesting the new brahmas if you want to keep the electrical upgrades and expensence to a minimum, you could do a single 12 or single 15 and youre gona have a really banging sub thats gona be able to outdisplace many common pair or subs. Like i said post a dubget and whe will work with you.


Hey lotas you make it seem like youre car completly died with all that power what happened man?

ive got a XXX getting 1200watts and a jl 300/4 so I have 1500watts on my stock alt, which is 90amps i think, believe me it will not last long. I ordered my HO alternator last week because of all the group buys, its definetly needed. I was in a guys car last night and he had 2 18" RF, not sure how many watts going to them, but it was a Ford Explorer, so probably a bigger alternator than mine, and his lights were dimming like crazy.

If you are getting an XXX, you will *probably* have to upgrade your electrical system. You could start with just the Big 3 and a new Battery and see how that does, before you get a HO alt.

Find out the rating of your alternator right now, take a look at it under the hood, it might say on it, if it doesnt, look online or call up Napa or Autozone or somewhere, they should know. Take the total RMS of your system and divide by 12 ( to be safe) . That will give you a rough estimate (although you should add efficiency for class D and A/B) of how many amps your system will be drawing from your alternator.

You also have to keep in mind your stock alternator wasn't designed with car audio in mind, so about 60% of your stock alternators amps are going to the electrical needs of the car, its probably different for every car though.

Anyways, there's some things to think about. The Big 3 (if you were wondering) is what you call upgrading three wires under your hood. Cant think of what three it is, its the two battery wires, and the ground to the engine block or something, someone will tell you, or you could probably search for it.

For more alt. info, check out the FAQ section, the very first topic is about Charging System and Alternators, that should give you some good info too.

ridr4lif wrote:his brahma and is hitting 140.3 in a 3.1 cu.ft. ported box.

141.1 dB*
3.1 is the net volume