View Full Version : box for 2 12L7's

10-14-2005, 04:45 PM
i was wondering what kinda box and tuning (Hz) should i use to make the things hit a 155+db? I'm using a 3000watts+

anyone that can help thanks

10-14-2005, 04:48 PM
So you are using 3000 watts huh... What amp?

You should follow the manufacturers recommended box specs and tuning.

10-14-2005, 04:52 PM
it's a Hifonic's BX1505D rated at [email protected] RMS

10-14-2005, 04:53 PM
it's a Hifonic's BX1505D rated at [email protected] RMS

hope you have 2 of those

10-14-2005, 04:59 PM
yes i've got 2 of them. one on each sub. I compete in MECA and i've never messed with kicker sub's before only audiobahn. and i finally found out why everyone says audiobahn are junk.

10-14-2005, 05:00 PM
it's a Hifonic's BX1505D rated at [email protected] RMS

One on each right. Cool decent power. Hope you have the electrical system for it:)

If polecat ever comes around again he can help you out the most. Guys a kicker buff.

IMO I would try 2-2.5 per driver tuned for comps @ 47hz or near. With a port plug for daily purposes.

10-14-2005, 05:25 PM
i'm going to get a bigger amp alt and 2 yellow top batts. i've got until March to do all my testing and building. i know it seems to be a little early but i like to take my time and make it right and LOUD.


MECA S3, M3, DB3

10-14-2005, 05:30 PM
Yeah hit polecat up whenever he gets back on, he works for kicker.

10-14-2005, 06:55 PM
I'll be running the same setup two BX1500D's with two 12" L7's. 2.5q^ft, i'll be tuning it to 45hz each space. Alt and yellow top upgrade. I am using WinISD and bassbox 6pro. bassbox is a sick app. In Bassbox I came up with 120db for spl and 129 in WiniSD. This a software sim real numbers can be -/+ . Download winISD its free. www.linearteam.org

note the amps will not really push out 1500watts, real numbers your looking at 900-1100. I've never seen a BX1500D come close to 1500watts maybe if it gets 14.5V's. But for L7's 750rms is all you need.

10-14-2005, 07:37 PM
ok i'm going to be using a 92 Ford Escort HB for the subs in competitions only hopefully i can pull a mid 150's

10-14-2005, 07:43 PM
2 12" Solobarics.......and you have till march. Well since you sound like you really want to take your time to do a nice job....why dont you wait another month and get something a little nicer to compete with. I dont think you can pull off a 155 with 2 L7's.....MAAAYBE on A Burp but..... If you are going to go with it. Id say go 3.5 cubed each....tune to 42 Hz. I just had 2 of them in 3 cubes tuned to 40 Hz with 1600 to each sub (actually about 900 daily) and it got **** loud...My ports werent that big though so I dunno how much SPL it would add if I made the port bigger.

10-14-2005, 08:18 PM
alright i've been told to tune this box @ 37, 40, 42, 45, 52Hz which to do???????

10-14-2005, 08:56 PM
alright i've been told to tune this box @ 37, 40, 42, 45, 52Hz which to do???????Is this for SPL or daily driving too?

10-14-2005, 09:17 PM
for spl competition i would say 45 and nothing less. As mentioned before you can get a port plug for daily driving.

10-15-2005, 04:58 AM
3g's +2 L7 12's= blowup
i wouldnt do it .....but
take half the power and make a 6th order bandpass and tune both ports to 70hz and u should hit a decent number depending on how your box is..my suggestion is a starting point


10-15-2005, 07:52 AM
sorry people but i changed my mind i'm going to be running 3 12L7's not 2, again sorry

10-16-2005, 08:11 AM
i'm thinkin a box thats is 9.1ft^3 with a 126sq.in port tuned around 44-48Hz

10-16-2005, 06:18 PM
no one wants to help??????????????

10-16-2005, 06:23 PM
no one wants to help??????????????NO

10-16-2005, 06:24 PM
J/K...lol you got till March! Why even bother making a thread of what your going to get. You will most likely change your mind by then. Wait a while and dont make any threads about what your going to get. Search and learn. You will learn alot by March.

10-16-2005, 07:00 PM
i have to be done at the end of January, but the comps start in Feb. but i want to get started so i can get some testing done and get tuned right ya know what i mean. i just like making my stuff look good and POUND LIKE HELL i've set a goal for myself and i like to make the goal. Thats why i'm starting now. I've got a box now but it's 6.6ft.^3 and tuned at 55Hz but it's for 15's.

10-16-2005, 07:42 PM
i was wondering what kinda box and tuning (Hz) should i use to make the things hit a 155+db? I'm using a 3000watts+

anyone that can help thanksOk well to answer your question A PORTED BOX is the kinda box you will need. Tune it around 48hz for two 12"s

10-16-2005, 07:43 PM
You do realize that these high tunnings will not be any good for you to use as daily driver right?