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jtomsic
11-24-2004, 08:13 PM
Maybe we can make this a thread on tips to how to gain SPL on your system, post any tips you can think of here.

Ricktc
11-24-2004, 08:19 PM
http://forums.caraudio.com/vb/showthread.php?t=63004

??

-Rick

bonesninja
11-24-2004, 08:19 PM
deadener----lots of deadener...

InhumanAcura
11-24-2004, 08:21 PM
Make and spend alot of money ;)

bonesninja
11-24-2004, 08:23 PM
Make and spend alot of money ;)
yeah that helps too

Ricktc
11-24-2004, 08:25 PM
Ahh whatever I'll get the thread going. Play with box positions, angles, move it all around until you find the single loudest configuration in your vehicle. Next play with seat configurations in the vehicle, trial and error, maximize your SPL and remember how everything goes. Write things down as you discover them. Move sun visors, arm rests, open the glove box, etc. Small things that can make a big difference. Duct tape around the surrounds of your subs and see if it helps. Use PVC pipe to round off edges and see if that does anything for you. Try bracing doors, trunk, roof, windows, anything you can try to see what gains you, and write these things down so you know exactly what does what. Little things can go a long way.

-Rick

Ricktc
11-24-2004, 08:25 PM
Deadener doesn't always gain.

-Rick

cobra65427289
11-25-2004, 10:46 AM
http://audioforum.termpro.com/ubb/ultimatebb.php?/ubb/get_topic/f/3/t/005383.html

enjoy :thumbsup:

al

cobra65427289
02-02-2005, 01:12 PM
bump for teh n00bs. :)

al

davesexplorer
02-02-2005, 06:10 PM
Everyone seems to be using duct tape in some way to improve spl?? I dunno...

Moe Lester
02-02-2005, 06:12 PM
Everyone seems to be using duct tape in some way to improve spl?? I dunno...


didnt help us... got the same score

tRiGgEr
02-02-2005, 06:21 PM
Paint your port black, Whistle while you bump.

InhumanAcura
02-02-2005, 06:37 PM
laser pointer..yank on cord

btnhfan
02-02-2005, 07:13 PM
I heard resining the inside of the box works well.

Ricktc
02-02-2005, 11:14 PM
Resining my box (inside) gained me HUGE...

Duct tape is also my best friend. Little things go a long way...

-Rick

Ricktc
02-02-2005, 11:14 PM
laser pointer..yank on cord

Well there's no fun in that now is there? :up2somet:

-Rick

djjdnap
02-03-2005, 03:19 AM
Hmm, so should i make a port whole in the back, where the 6x9s are or should I take out the arm rest in the back seat...

I just need some way for the sound to get into the cab of my car.

ttsquared100
02-03-2005, 11:11 AM
deadener----lots of deadener...


to much sound deadener is not always good...

cant go wrong with a big port bigger is better

bri487
02-03-2005, 11:18 AM
to much sound deadener is not always good...

cant go wrong with a big port bigger is better

not always, ports that are too big can result in complete loss of control of the sub below the tuning frequency. but i think he meant make a port between the trunk of the car and the cab of the car.

SPL140.2
03-01-2005, 05:01 PM
match your port frequency to the in car resonant frequency, play a single tone, example a tone of 43hz and hold it for 3 seconds on a termlab mic.

noob with an RS
03-01-2005, 07:06 PM
Resining my box (inside) gained me HUGE...

Duct tape is also my best friend. Little things go a long way...

-Rick
what does resining the box mean? if it gained u huge then i am VERY interested in doing so! :up2somet:

idbl_fanatic
03-01-2005, 07:19 PM
what does resining the box mean? if it gained u huge then i am VERY interested in doing so! :up2somet:


Fiberglas resin, however, it WILL change your tuning of your box, I have found that a latex paint works just as well, and will not change the tuning

Ricktc
03-02-2005, 08:17 PM
what does resining the box mean? if it gained u huge then i am VERY interested in doing so! :up2somet:

Yup use fiberglass resin by painting it on the inside of the box...It is true yes it sometimes can change your note, usually making it higher. (Not usually a bad thing)

-Rick

InhumanAcura
03-02-2005, 08:28 PM
what does resining the box mean? if it gained u huge then i am VERY interested in doing so! :up2somet:

sometimes we gain, sometimes we dont see any difference.

btnhfan
03-02-2005, 10:16 PM
Has anyone ever tried using something like mini wax on the inside? I am thinking about trying that, especially in the port.

InhumanAcura
03-02-2005, 10:55 PM
Has anyone ever tried using something like mini wax on the inside? I am thinking about trying that, especially in the port.

:blush: I tried waxing out aeroports one time, they got realllly smooth but we didnt gain anything from it.

Basshead808
03-03-2005, 01:17 AM
Paint your port black, Whistle while you bump.

HAHAHAHA!

btnhfan
03-03-2005, 12:53 PM
:blush: I tried waxing out aeroports one time, they got realllly smooth but we didnt gain anything from it.

Maybe in wood it might help though, fill in the tiny holes that are there. Im gonna try it and see what happens.

Basshead808
03-09-2005, 02:50 AM
Maybe in wood it might help though, fill in the tiny holes that are there. Im gonna try it and see what happens.

Hey btnhfan :D did the wax thing in the port work?, I mean.. is it louder?

btnhfan
03-09-2005, 10:59 PM
Didnt do it yet. I have to build my box first, and then get it metered. Then Ill take it apart, and do the port thingy. Ill post it up when its done. I suspect it will though.

Spkrman
03-13-2005, 04:11 PM
didnt help us... got the same score

Ive never personally seen anyone gain from putting duct tape around the subs.. and ive never gained from taping behind ports and all that.

I think loyd does that so he can feel special ;)

/me goes to the garage to duck his box inside and out

Ricktc
03-13-2005, 11:36 PM
Ive never personally seen anyone gain from putting duct tape around the subs.. and ive never gained from taping behind ports and all that.

I think loyd does that so he can feel special ;)

/me goes to the garage to duck his box inside and out

I gain 0.5 from duct taping subs. Shawn's car gained 0.2.

-Rick

Spkrman
03-14-2005, 07:37 AM
I gain 0.5 from duct taping subs. Shawn's car gained 0.2.

-Rick

whats hte explanation for why it works??

btnhfan
03-14-2005, 01:18 PM
Keep the air in. There are sometimes little leaks around the gasket. Its to keep it in, and make sure everything comes out the port.

Raven
03-15-2005, 11:34 AM
One of my quircks is dimpled port walls. A golf ball has dimples in it to reduce air resistance by as much as 15%. The same thing works on cheater baseball bats. If I had the money or the MDF Iīd take a hammer and make little dimples in the port wall, and then resin / latex paint / turtle wax it.

btnhfan
03-15-2005, 11:15 PM
Okay the minwax didnt work. Im going to try resin. It just gets soaked into the **** mdf.

Basshead808
03-15-2005, 11:52 PM
aw shucks

aphinney
03-16-2005, 01:21 AM
i like that golf ball thing...smart i am goin to try it

Ricktc
03-16-2005, 11:21 AM
whats hte explanation for why it works??

Only thing I can credit it to would be a smooth transition of air off of the cone and the gasket.

-Rick

BASS OUTLAW
03-16-2005, 12:37 PM
heard cement...fill inside the doors.. will increase db?
cause the body will be tight n will not vibrate..
also a steel(or non flexing metal ) instead of the windshield..(cancelation issues)

^^^ am sure that wont work for an everyday driving car ... but u guys ever heard of that ? works? tested?

btnhfan
03-16-2005, 12:41 PM
It depends on the class you are in for the windshield. I have heard of people using concrete in the extreme classes.

Nikuk
03-16-2005, 01:11 PM
It depends on the class you are in for the windshield. I have heard of people using concrete in the extreme classes.


Some teams use crete in street & steet max as well ;)

btnhfan
03-16-2005, 05:16 PM
Dammnn.

I bet a lot need new or modified suspensions, depending on how much they use.

Raven
03-16-2005, 10:33 PM
Definitely. The only person I know of with a real competition setup around here has about .75 tons in equipment and MDF in the back of his Suburban.

Raven
03-16-2005, 10:42 PM
i like that golf ball thing...smart i am goin to try it
Thatīs a big IF as to whether or not it will work. Yes, it does work with golf balls and baseball bats, but those both have nice and pretty curved surfaces, where a port is very flat and straight.

Another random idea: Instead of just triangle shaped blocks of wood in inside edges of the box, use a mold or clay that you can make very very smooth corners and edges instead.

Also, lining the inside of a sealed box with a jagged edge cover, like they use in radio station studios to kill reverberation. Since backwaves are bad in a sealed box, this would create chaos refraction and uber cancellation of the backwave. Like polyfill thatīs only 1/4 to 1/2 inch thick doing the job of a pound of it.

InhumanAcura
03-16-2005, 11:40 PM
Another random idea: Instead of just triangle shaped blocks of wood in inside edges of the box, use a mold or clay that you can make very very smooth corners and edges instead.

:)

http://img14.exs.cx/img14/2334/p10100478gw.jpg

Nikuk
03-16-2005, 11:42 PM
^ beat me. LoL

Cardboard mailing tube work well.

-Nick