View Full Version : Need better box for 2 type r 12

08-05-2008, 10:05 AM
My actual box is 4.3 ft/cu tune to 32hz hooked at 1ohm on a bxi1606d. My subsonic is around 26-28hz
My main complain is the fact that sometime (i should say on some track) the bass isn't sharp at all. It sound like if the subs didn't have the time to recover from the previous hit. Real sloppy Like a continous bass going nowhere. I feel like the box might be tune too low or is too big. The amp is not clipping so i'm pretty sure it's more a box question

The box design i got right now was suggested by people on RealmofExcursion. I does get extremly loud, but i'm not sure that's what i'm looking for. I want to get the best sq off the type r 12 inch. I'll be going sealed if it's a necessity.

what would you suggest? Alpine say around 0.7-1ft/cu per sub but peoples say that they are pretty off in their suggestion:rolleyes:

08-05-2008, 10:08 AM
Type R's aren't known for sq really. But Maybe tune lower or go sealed?

08-05-2008, 10:14 AM
type r is not an sq driver. your best bet is to go sealed, but output will suffer.

08-05-2008, 10:29 AM
i know it's not a Sq sub... but i want to get the best out of it. Sealed box, but what size? from your experience, not from Alpine specs

08-05-2008, 10:31 AM
how will it suffer? if i need to push the gain too much for my listening level i ain't go nowhere. I,m gonna loose around 3db around 30-40hz or more?

08-06-2008, 10:38 AM
how would it affect the sound if i choose to make another box tuned to 32hz but smaller more like 3.5ft/cu (around 1,75ft/cu per sub).

Would the sound be more controlled? Punchier? Sloppier? or just crappy

08-08-2008, 03:10 PM
??? My guess is that it will be more controled, and punchier

08-08-2008, 03:16 PM
i would raise the tuning to 35 hz and lower volume to 4.0. it won't take a dramatic change in tuning or box volume to change the performance.

08-08-2008, 10:15 PM
type R's aren't 1ohm stable are they???

08-08-2008, 10:54 PM
type R's aren't 1ohm stable are they???

if he has two dual 4s he can wire to one ohm.

08-08-2008, 11:19 PM
****, this audio stuff really is kicking my butt...I read and read and I can't retain the info...Time to go back to college...

08-09-2008, 10:24 AM
a smaller box will be much "tighter" sounding. but with a smaller box you need more power ;)

08-10-2008, 06:45 AM
I have two of mine 12" in a 3.5^3 @36hz and I'm not liking how the SQ (WHAT SQ!?!?!) is. It's loud as ---- but plays sloppy. Way louder than my 06 S15l7, but....I like how the kicker sound more.

08-10-2008, 06:52 AM
you don't want to make you alpine sound good. you just want them to hit stupid loud

put them in 3.7

poart both subs with 1 poart @ 36Hz


if you want sq, go with type X

08-10-2008, 01:30 PM
so something around 36hz 3.7 would sound a little more precice but be a little more quiet too that right?

I guess i could try that