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» Termpro Audio Forum » Installer's Corner » Installation Tips, Tricks, & Techniques » Things that will increse your SPL

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Author Topic: Things that will increse your SPL
Freeland Kustomz
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Idea tips tricks that worked for you to increase your score? Ive already done multiple layers of sound deadner on my roof, floor, doors, flaps, any open holes are sealed shut. what other tricks are there? re adjusting door latches?? hatch latches? special expanding foam that works well? any thing you got post it up!
Posts: 89 | From: Yucca Valley, Ca | Registered: Sep 2008  |  IP: Logged | Report this post to a Moderator
Nightshade
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Try positioning your seats up front all the way foward and leaning toward the dash. That is worth .5 db's in my car and even more in others. Play with the visor positioning and rear view mirrors too. Then there's always certain places on the car that can be braced to help pick up db's.

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TEAM SUNDOWN AUDIO
2009 NSPL Car 1801-3600 Watt Record Holder: 151.2db
2009 NSPL Car 3601-Up Watt Record Holder: 152.6db
2009 NSPL Car Hardcore Record Holder: 155.2db
2009 NSPL Car 3601-UP, Car Hardcore, and Car Points World Champion

Posts: 1847 | From: The Triad | Registered: Jan 2008  |  IP: Logged | Report this post to a Moderator
Freeland Kustomz
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What are trouble areas that have problems. Ive already done expanding foam in just about every place. my back gate moves like crazy which i dont know how to fix that.
Posts: 89 | From: Yucca Valley, Ca | Registered: Sep 2008  |  IP: Logged | Report this post to a Moderator
TeamSubGoPoof
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what kind of vehicle?

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Posts: 8168 | From: Russellville AL | Registered: Nov 2002  |  IP: Logged | Report this post to a Moderator
Freeland Kustomz
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Well i was hoping to get alot of information on vehicles here for others to learn from. I have a 4 door blazer with a street b install
Posts: 89 | From: Yucca Valley, Ca | Registered: Sep 2008  |  IP: Logged | Report this post to a Moderator
Vizzo
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I gain almost a full dB by sitting on my windshield.

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Street A

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Posts: 624 | From: Deltona, FL | Registered: Nov 2000  |  IP: Logged | Report this post to a Moderator
TeamSubGoPoof
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quote:
Originally posted by Freeland Kustomz:
Well i was hoping to get alot of information on vehicles here for others to learn from. I have a 4 door blazer with a street b install

oh man! older model blazer? I had a 96 bravada I competed in street A with...i know some tricks to gain over 2.5 db in that thing lol


Take the 4x6 out of the dash on the passenger side thats like 6 tenths


If you have a center console...fold it up thats 2 tenths. Both seats all the way foward and as far foward as they will go. Take the rear panels off the back end and you will find some vents/flaps you can actually feel air come out when its playing...seal those off


If you have an overhead console also fold down all the pockets that gained a tenth consistantly

also practice holding the back glass...with one hand right in the middle of the latch no where else, that gained another few tenths.

Also sitting right in the center at the top of the windshield gains [Smile]

there are a couple of other things I can't remember though


also if you aren't doing it...try duct taping your subs, 3 or 4'' strips of duct tape done in a circle to make like a roll off between the enclosure and the sub. That gains like 8 tenths in most vehicles

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Posts: 8168 | From: Russellville AL | Registered: Nov 2002  |  IP: Logged | Report this post to a Moderator
Freeland Kustomz
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hmm i will have to try this! its a 2000 blazer, and i have the over head console, center console problems. the vents are very shut off. I have done expanding foam just about everywhere, tons of sound mat is on everything. Im going to have to try this!
Posts: 89 | From: Yucca Valley, Ca | Registered: Sep 2008  |  IP: Logged | Report this post to a Moderator
Team Naptime
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one thing concerns me...

are you competing in dbdrag or bass race?

i ask because in your first post you mention "multiple layers of soundmat" and in your recent post you mention "tons of sound mat"


i jsut want to make sure that you know you can only have TWO layers of sound deadening in dbdrag..

i jsut dont want to see you get dq'd for something silly.


now, if its bassrace or psychlone then it doesnt really matter.

but i thought you mentioned street b..


anyway... as mentioned above... the visors, seats, and center consoles are all good things to test.

i also found in both my bucik and my nissan, that having the glovebox door OPEN and the glovebox EMPTY was good for a few tenths.

also fresh air vent OPEN and set to defrost was afew tenths in my nissan.

the 4x6 in the dash is a brilliant idea justin .. gonna have to try that in the new sonoma!!

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Team Maxxsonics . Kinetik Power
Maxxsonics Team Captain
2005 WF SM 1-2 6th place
2006 WF SM 1-2 4th Place : U.S. Points 3rd w/315 points : SPLMax Competitor of the Year.
2007 WF SM 1-2 4th Place : U.S. Points 9th w/215 points : Top U.S. SM 1-2 certified score.
2007 Usaci State Records : Mod 2001-4000 : Mod 4000-up : Port Wars Open : Street Beat 4.
2008 Sold the nissan and took a break to build a new minitruck.
2009 Coming back with Bass Race & Psychlone in the minitruck.

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Posts: 3766 | From: Toledo, Ohio | Registered: Sep 2004  |  IP: Logged | Report this post to a Moderator
TeamSubGoPoof
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quote:
Originally posted by Team Naptime:
one thing concerns me...

are you competing in dbdrag or bass race?

i ask because in your first post you mention "multiple layers of soundmat" and in your recent post you mention "tons of sound mat"


i jsut want to make sure that you know you can only have TWO layers of sound deadening in dbdrag..

i jsut dont want to see you get dq'd for something silly.


now, if its bassrace or psychlone then it doesnt really matter.

but i thought you mentioned street b..


anyway... as mentioned above... the visors, seats, and center consoles are all good things to test.

i also found in both my bucik and my nissan, that having the glovebox door OPEN and the glovebox EMPTY was good for a few tenths.

also fresh air vent OPEN and set to defrost was afew tenths in my nissan.

the 4x6 in the dash is a brilliant idea justin .. gonna have to try that in the new sonoma!!

it helps a ton


at 04 finals when I did street A...my head unit skipped and I didn't qualify.

I went right over Shedluvs s10 and started helping him...he was doing right at a 150 when we started and with duct tape, taking the 4x6s out, folding the visors down, folding seats up, opening the consoles etc etc he was doing almost a 153 and his freq changed...then he didn't set his freq when he went to the lane and played like track 2 on the db jams volume 7 lol


I never tried the glovebox though!

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Posts: 8168 | From: Russellville AL | Registered: Nov 2002  |  IP: Logged | Report this post to a Moderator
Freeland Kustomz
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Yea i am only bass racing now, no street b for me
Posts: 89 | From: Yucca Valley, Ca | Registered: Sep 2008  |  IP: Logged | Report this post to a Moderator
   

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