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View Full Version : 147 db on a LOW tuned box



Joe562MMA
05-29-2012, 04:29 AM
so im getting 147 on music with a 14 foot cubic foot box for four 15 inch alpine type Rs at .5 ohm on one sundown saz 2500d..

im looking for suggestions as to what new box to build or should i just wall off my van i have an astro van..

i have 235 h/o alt/ one yellow top in front 2 ups 370fr in back an welding wire 2/0 running through t system

the next box is gonna be tuned higher i was just looking for suggestions an projections db wise..

im also thinking about getting a sound stream xxx 6500d to run my subs at 2 ohms an get supposedly 3298 watts at 2 ohms

subzero
05-29-2012, 04:45 AM
Post max space you have to wprk with and current box dimmensions

SMS
05-29-2012, 07:06 AM
how low is it tuned?
seems like the sundown amp would be the better choice-are you having issuses at .5?-why are you looking to replace it?

smd4life
05-29-2012, 08:25 AM
because using that amp is still leaving something on the table, i would buy another 2500d

hispls
05-29-2012, 10:51 AM
so im getting 147 on music with a 14 foot cubic foot box for four 15 inch alpine type Rs at .5 ohm on one sundown saz 2500d..

im looking for suggestions as to what new box to build or should i just wall off my van i have an astro van..

i have 235 h/o alt/ one yellow top in front 2 ups 370fr in back an welding wire 2/0 running through t system

the next box is gonna be tuned higher i was just looking for suggestions an projections db wise..

im also thinking about getting a sound stream xxx 6500d to run my subs at 2 ohms an get supposedly 3298 watts at 2 ohms

That soundstream amp at 2 ohms will not be an upgrade for you. Pics of this box?

SSS 18734
05-29-2012, 11:28 PM
What frequency are you getting that figure at?

Buck
05-29-2012, 11:32 PM
How low is low?

Joe562MMA
05-30-2012, 04:46 AM
officially 29hz
an the guy b4 me that had the subs on a hifonics 3000 hit the 147 i was just stating his term lab score being as to see how i have the sundown i figured it made higher rated power

Joe562MMA
05-30-2012, 04:48 AM
but ill upload pics tomorrow thanks guys i have an astro van aswell so space isnt to much of an issue
i was even thinking walling

Imtjnotu
05-30-2012, 04:50 AM
Not bad for 29hz... Wats your cars peak

TaylorFade
05-30-2012, 06:44 AM
Not bad for 29hz... Wats your cars peak

Not bad? Lol. How many people on here can do 47@29?

subzero
05-30-2012, 07:39 AM
My car did 47 @ 36hz. on 2 12's. team mate did 152 @ 26. 4 15's

Kangaroux
05-30-2012, 09:13 AM
Ellis did a 49.9 or something stupid like that @ 26hz running off his 2 12" mad maxx's in his truck

SSS 18734
06-01-2012, 12:59 AM
Not bad? Lol. How many people on here can do 47@29?

My last build got 148db @ 28 hz off a pair of 15's and 3kw

Julian
06-01-2012, 01:04 AM
Not bad? Lol. How many people on here can do 47@29?

I do like a 150 at 29hz..

Joe562MMA
06-03-2012, 01:30 AM
cool ima get a bigger amp send some more power to um
either skar or sundown 4500.

sacsking916
06-03-2012, 01:09 PM
So the box is turned low but doesn't necessarily that score is from that low.

subzero
06-03-2012, 01:41 PM
150 @ 28

Buck
06-03-2012, 02:53 PM
Not bad? Lol. How many people on here can do 47@29?

:wave:

wenn_du_weinst
06-03-2012, 03:03 PM
how many people can do it from 25-80hz? then I'll be impressed.

Buck
06-03-2012, 03:07 PM
I can do it from about 27 to 55. Who wants to do a 147 over 60 hz though? Do you want your subs to play that high?

wenn_du_weinst
06-03-2012, 03:11 PM
my subs don't play over 45hz right now, and will probably be dropped down to 40hz after I get better mids. Doesn't mean there should be a drop in volume. The biggest problem with this whole argument is the fact decibels do not say how loud something is, I want no audible dip in output, I could care less what score it does.

Buck
06-03-2012, 03:16 PM
my subs don't play over 45hz right now, and will probably be dropped down to 40hz after I get better mids. Doesn't mean there should be a drop in volume. The biggest problem with this whole argument is the fact decibels do not say how loud something is, I want no audible dip in output, I could care less what score it does.

But if your subs don't play over 45 hz, how is that not a drop in volume to 80?


And if you have a drop in volume over 60, you can have an increase in volume in other places :fyi:

wenn_du_weinst
06-03-2012, 03:30 PM
because like I said, db's do not dictate audible output. If you were to sit in a car doing 150db at 2khz you would go deaf instantly, it's much much louder then 150db at 35hz. you can be down 10-20db and have the same volume just depends on the freq

---------- Post added at 01:30 PM ---------- Previous post was at 01:29 PM ----------

and my system doesn't dip because I built it not to.