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loserpunk
05-12-2003, 02:32 PM
hey i need box designs for my 15 xxx... i want it to be ported and thats about the only thing that i'm picky with....

ss3079
05-12-2003, 09:16 PM
E-mail RE with your maximum dimensions, tell them how much power you will be running, and that you want a ported box...tell them you want it loud or loud with SQ:D

Or post your specs here and we'll attempt to help you;)

- Steve

loserpunk
05-12-2003, 09:30 PM
thanks steve...

ps i'm just trying to get my posts up:D almost at 100 and i was at 60 two days ago :crazy:

burtonsnow83
05-14-2003, 04:22 PM
Don't be a post ***** though man, make meaningul posts or it looks kinda dumb...

Jdg784
05-15-2003, 11:35 PM
I'm looking into the same thing, I want a loud ported box w/SQ (SQL)...and I'm running off a JBL 1200.1 About what range should I tune the box to if I want it loud for rap/rock, but still somewhat clean? I listen to about 50/50 rap/rock. The most I'll be able to get is about 3..maybe 3.5 cubes.

loserpunk
05-16-2003, 01:47 AM
isn't it something like .... the lower the tuning the louder???i think i'm messed up there...someone smarter:p straghten me out....i dont' quite understand all this yet

Randy Savage
05-16-2003, 01:48 AM
Originally posted by loserpunk
isn't it something like .... the lower the tuning the louder???i think i'm messed up there...someone smarter:p straghten me out....i dont' quite understand all this yet

No, generally a higher tuning (around res. freq of car) will yield higher output around that frequency...but won't have too great of a low end.

loserpunk
05-16-2003, 01:51 AM
yea ... whats wit the res freq of the car...how do you figure that out...can't i just ask the magic geni or maybe gauntlet:D

Randy Savage
05-16-2003, 01:54 AM
Originally posted by loserpunk
yea ... whats wit the res freq of the car...how do you figure that out...can't i just ask the magic geni or maybe gauntlet:D

Basically every car has a frequency at which they will peak at...meaning that frequency will get the loudest...finding it is quite easy, I just posted this earlier-

Get a radio shack meter. Have a single 10/12 inch sub in a SEALED box.
Place the sub outside the car take SPL with the meter from 35-80hz(It does not have to be at high volume, since the Radio Shack meter only goes up to 126db). Graph your results on a line graph.

Now place the sub in the car and do the same test with 35-80hz. Using the same graph, graph the results you got from inside your car with a different color pencil/pen.

Okay now look on your graph, the parts where your lines are FARTHEST apart, that is your resonant frequency.

Now, when tuning to the resonant frequency, you want to tune it a little under it, so that the box will have a peak right around the resonant frequency...

loserpunk
05-16-2003, 01:58 AM
thanks for all your help


by the way...how'd you get so smart snova????i bet you got it from your parents didn't you:)

loserpunk
05-16-2003, 02:01 AM
oh and i've never used a meter like this before...could you maybe elaborate on the details just a little bit...such as where do i get 35-80hz to come from...will the meter tell me that or do i have to get a certain cd w/ freq that match those...well w/e whenever you can answer that just pm me or something..i'll probably get around to doing it tom. or saturday

Randy Savage
05-16-2003, 02:07 AM
Originally posted by loserpunk
by the way...how'd you get so smart snova????i bet you got it from your parents didn't you:)

I'm not smart. Just a struggling college kid that spends too much time reading about car audio and too little on Chemistry....


oh and i've never used a meter like this before...could you maybe elaborate on the details just a little bit...such as where do i get 35-80hz to come from...will the meter tell me that or do i have to get a certain cd w/ freq that match those...well w/e whenever you can answer that just pm me or something..i'll probably get around to doing it tom. or saturday

You can d/l a program called NCH Tone Generator. Make different sine waves of different frequencies, save them as a .wav file, and burn them to CD.

loserpunk
05-16-2003, 02:13 PM
ok thanks...

bigred78797
05-16-2003, 05:41 PM
You could either do that or buy a bass mekanik CD,

Faster, Harder, Louder.
Sonic Overload (best one)
or Download.

I always use these because the computers can affect the form and shape of the wave ever so slightly and cause distortion. Probably not enought that u could hear it... most of the time.

loserpunk
05-16-2003, 08:24 PM
ok...if i buy the cd how do i know what freq. it's playing at any certain time??

bigred78797
05-16-2003, 09:09 PM
He has the hz tones numbered. like 20hz is track #20, 30hz track #30 and so on. In sonic overload and faster harder louder he gives you instructions on how to test your system. Sonic overload has a low test( too see how low your system can go ), the majority of it is tunes for just compitition ( really low bass, down to less than 20 hz at somepoints ), noise test, resonance test, high frequency test, test to test the transient characteristics of your system, and a alot more. It also has this song on there that is LOUD and HARD HITTING track #12. Sonic overload it your best buy for testing... unless you get "Bass Mekanik: Power Tools" also.