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what kinda db?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=79538
Printed Date: July 06, 2025 at 5:07 PM


Topic: what kinda db?

Posted By: smokinsmitty
Subject: what kinda db?
Date Posted: June 23, 2006 at 11:06 PM

well i know it is impossible to tell for sure! but if someone could give me a guess on what kinda db i will hit in a couple weeks that would be great. My vehicle is a 1997 GMC Sonoma extended cab. 2 12" Fusion Powerplants ppsw12h in a 2.2cuft ported to 38hz box (each chamber) insulation stappled to each wall! then a fusion pp-am20001 amplifier wired into 1ohm pushing the subs. using 12gauge speaker wire and 4 gauge amp and power. Using a JVC head unit. I know u cant tell for sure. just give me some kind of guess. im hoping to get a respectable number.

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1 15" Memphis Mojo,
Memphis 16-mc1000D amp,
Audiopipe 4gauge mp kit, Pioneer DEH4700MP head unit.
2002 Yamaha 660R Raptor
Yamaha FZR600 crotch rocket
Sea Doo XP800
Sea Doo Spi



Replies:

Posted By: DYohn
Date Posted: June 23, 2006 at 11:36 PM

I predict somewhere between 85db and 160db.  posted_image

It is impossible to guess.  If you get a legit meter score, be sure to post it here.



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Posted By: jlord16
Date Posted: June 24, 2006 at 2:02 AM
DYohn] wrote:

I predict somewhere between 85db and 160db.  posted_image


Sounds reasonable lol



-------------
Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*




Posted By: luckydevil
Date Posted: June 24, 2006 at 2:37 AM
The number I guess is...

The number of protons in a copper molecule multiplied by the number of electrons in a copper molecule, and then divided by the port length (inches) of a 3.5" diameter port used to tune a 6 cubic ft box to 22.23Hz.

p.s.- don't forget to subtract the port volume from the box volume.





Posted By: jlord16
Date Posted: June 24, 2006 at 2:52 AM
136.08 db and thats rounded slightly from the port length, and that is assuming you are talking about copper in its natural state not an isotope that would have more or less pretons and elctons then the standard 29 in ntural copper, sad thing is i had the time to calculate it

-------------
Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*




Posted By: smokinsmitty
Date Posted: June 24, 2006 at 8:49 AM

136. eww i hope that isnt right! id like to hit a lot higher then that. but I'll let everyone know how the competition goes.



-------------
1 15" Memphis Mojo,
Memphis 16-mc1000D amp,
Audiopipe 4gauge mp kit, Pioneer DEH4700MP head unit.
2002 Yamaha 660R Raptor
Yamaha FZR600 crotch rocket
Sea Doo XP800
Sea Doo Spi




Posted By: luckydevil
Date Posted: June 24, 2006 at 11:16 AM
smokinsmitty wrote:

136. eww i hope that isnt right! id like to hit a lot higher then that. but I'll let everyone know how the competition goes.




We are just messing with you. Like DYohn said, it is impossible to tell. Post some pictures of your install and you might get some tips from the guys on here.





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