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View Full Version : Re Xxx 18



snebes
06-23-2005, 02:36 PM
As I get closer to building my new box, I have been playing with the calculations for the size. To have a Qtc of .707, I would need a 20 cube box!! I have been designing around the 7.5 cube box that RE recommends for the woofer. The port on the 7.5 cube box ended up being 150 in^2 at 44.75 in long, making it about an 11 cube box.

I have yet to call RE about these numbers, as my cell phone tower is bork'd and I have no service.

What do you all think I should do? The 11 cube box is possible for my trunk, but it has a Qtc of 1.0076. I know it will sound fine, but I was hoping for the much flatter response curve. Should I keep the 18" for the car, or look into getting another sub? I wanted to compete with the 18, but not in this car, so I will be keeping it no matter what.

Any input is greatly appreciated, but the sun is frying my brain today so I can't think straight :)

chinny
06-23-2005, 04:10 PM
well, why are you competing with an XXX?

chinny
06-23-2005, 04:10 PM
get a 15 and u will be happy.. im still choosing between a single sub setup wich will be an xxx15 or 2 sx 12's...decisions

UndercoverPunk
06-23-2005, 04:13 PM
get a 15 and u will be happy.. im still choosing between a single sub setup wich will be an xxx15 or 2 sx 12's...decisions

If you want loud chinny, go with the 2 12's they have more displacement and SX's are just plain louder than XXX's...

AndyB
06-23-2005, 04:13 PM
^^ just got off the phone with RE Audio... $270 shipped for a SX 12" from NV to me, Kentucky.

snebes
06-23-2005, 04:21 PM
^^ just got off the phone with RE Audio... $270 shipped for a SX 12" from NV to me, Kentucky.

Good to know.

I don't know if I would be using the XXX for comps, but I was looking to get 2-18s in a good bandpass box (a properly built one, and the xxx wouldn't suit well, the BL is kinda big). But the a daily driver, I want my 18xxx to get loud for me. I guess I will just experiment with the space I have for it :up2somet:

chinny
06-23-2005, 04:38 PM
If you want loud chinny, go with the 2 12's they have more displacement and SX's are just plain louder than XXX's...

I want loud yes, but i also want some SQ to it, i want like 60/40 spl/sq. I have never heard an xxx or an sx... thats why i cant chose :(

NJack2AF
06-23-2005, 05:45 PM
get a 15 and u will be happy.. im still choosing between a single sub setup wich will be an xxx15 or 2 sx 12's...decisions

I'd definitely get the 2 12" SX's. I'm sure they would have a lot more output.

NJack2AF
06-23-2005, 05:47 PM
I want loud yes, but i also want some SQ to it, i want like 60/40 spl/sq. I have never heard an xxx or an sx... thats why i cant chose :(

I have heard both. If you are a little more about SPL than SQ you should get the SX's ;) They still have good SQ, they aren't just SPL fart machines like Audioblings :laugh:

chinny
06-23-2005, 06:02 PM
I have heard both. If you are a little more about SPL than SQ you should get the SX's ;) They still have good SQ, they aren't just SPL fart machines like Audioblings :laugh:

How loud is your XXX 15? Have you metered it? How far can you hear it?

Sorry for thread jacking here guys lol.

chinny
06-23-2005, 06:04 PM
Ill pm you..

chinny
06-24-2005, 06:11 AM
tt