porting sub box - Ranger-Forums - The Ultimate Ford Ranger Resource


Audio & Video Tech General discussion of audio and video for the Ford Ranger.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-11-2008
yellow_edge's Avatar
Member
Thread Starter
 
Join Date: May 2008
Location: Wauseon,Ohio
Posts: 760
porting sub box

k im getting alotta extra noise when i play rock, not so bad in rap. just kinda filler noise that sudnt be there. so i need help deciding if it needs to be ported and how and where. it a huge *** box so im assuming that why. uve pry seen the pics but ill post em. the subs face down and its two 12's. oh and theyre seperated inside the box theres a middle piece. thanks!

Name:  DSC00104.jpg
Views: 84
Size:  135.5 KB

Name:  db4e_1_sbl.jpg
Views: 21
Size:  30.5 KB

Name:  dc29_1_sbl.jpg
Views: 16
Size:  13.0 KB
Reply With Quote
  #2  
Old 10-11-2008
ColdNapalm's Avatar
Member
 
Join Date: Sep 2008
Location: Jacksonville, Florida
Posts: 499
did u buy that prefabbed and does it fit good looks like it? but i dont no anything about porting expect what ever hertz you tune it to it will kick *** at that hertz and sound off on the others..... \
Reply With Quote
  #3  
Old 10-11-2008
darkstar_420's Avatar
Member
 
Join Date: Feb 2008
Location: sk
Posts: 621
if your gonna port a box to make it sound good you need the right sized box, if a box was made to be sealed and you port it, it usually sounds like shat. In order to recieve a good sound of bass from a ported box the box usually has to be WAY BIGGER, example sealed boxes usually only require .5-.75 cubic feet of air space but ported usually require 1-1.5 cubic feet, so i would sell that box and buy a new one.
Reply With Quote
  #4  
Old 10-11-2008
yellow_edge's Avatar
Member
Thread Starter
 
Join Date: May 2008
Location: Wauseon,Ohio
Posts: 760
^well its 1.26 airspace. . . correct me if im wrong but thats between 1 and 1.5 ?????
Reply With Quote
  #5  
Old 10-11-2008
darkstar_420's Avatar
Member
 
Join Date: Feb 2008
Location: sk
Posts: 621
sorry i forgot to specify 1-1.5 cubic feet EACH not over all
Reply With Quote
  #6  
Old 10-11-2008
burnsdez's Avatar
Member
 
Join Date: Jan 2007
Location: Wabash, IN
Posts: 54
It says 1.26 per chamber in the pic with the dimensions
Reply With Quote
  #7  
Old 10-12-2008
yellow_edge's Avatar
Member
Thread Starter
 
Join Date: May 2008
Location: Wauseon,Ohio
Posts: 760
ya im pretty sure it is 1.26 each. that just makes sense, its a really big box. either way tho do you think that wud solve the problem? i assume with such a big box theres just more noise like when the subs are barely moving but enough to make noise
Reply With Quote
  #8  
Old 10-12-2008
99offroadrngr's Avatar
TOYOTA
iTrader: (37)
 
Join Date: Jul 2007
Location: Massachusetts
Posts: 11,728
my box isn't ported and it rattled. Put in some dynamat and the rattling was gone.
but it wasn't my box that aws rattling it was the back panel and the two rear door panels.
Reply With Quote
  #9  
Old 10-12-2008
darkstar_420's Avatar
Member
 
Join Date: Feb 2008
Location: sk
Posts: 621
the subs are rattling?
Reply With Quote
  #10  
Old 10-12-2008
CBFranger's Avatar
Member
 
Join Date: May 2008
Location: Tampa Bay Area
Posts: 1,029
Describe the extra noise you are hearing.
Reply With Quote
  #11  
Old 10-12-2008
yellow_edge's Avatar
Member
Thread Starter
 
Join Date: May 2008
Location: Wauseon,Ohio
Posts: 760
its not rattling thats for sure. its almost like feedback i get from my bass amp. theres pry a word for it i juss cant think of it. it only does it bad on certain bands and songs.
Reply With Quote
  #12  
Old 10-12-2008
darkstar_420's Avatar
Member
 
Join Date: Feb 2008
Location: sk
Posts: 621
it sounds like you may have a blown sub.....
Reply With Quote
  #13  
Old 10-12-2008
burnsdez's Avatar
Member
 
Join Date: Jan 2007
Location: Wabash, IN
Posts: 54
It sounds like the amp just needs tuned a little better. When you play rap the majority of the beat is bass so there's no other sounds going through your subs. But when you play rock there are so many other frequencies and sounds getting to your subs that make them sound like *ss.
Reply With Quote
  #14  
Old 10-12-2008
rsw2159's Avatar
Member
 
Join Date: Jun 2008
Location: Stanley, NC
Posts: 473
nice box =]

looks like mine
Reply With Quote
  #15  
Old 10-12-2008
rsw2159's Avatar
Member
 
Join Date: Jun 2008
Location: Stanley, NC
Posts: 473
dont juss drill holes to port it,
do it the right way
Reply With Quote
  #16  
Old 10-12-2008
yellow_edge's Avatar
Member
Thread Starter
 
Join Date: May 2008
Location: Wauseon,Ohio
Posts: 760
^ what is the right way lol

and darkstar its not a blown sub...i wud kno if it was blown lol
Reply With Quote
  #17  
Old 10-12-2008
Strider0O0's Avatar
Member
 
Join Date: Jul 2004
Location: Philadelphia, PA
Posts: 3,588
Quote:
Originally Posted by rsw2159 View Post
dont juss drill holes to port it,
do it the right way

exactly.

a ported box is much more involved than a sealed box. many variables go into play when building a ported box- type of sub, t/s parameters, desire, etc.. once you get that info, figure out if your subs are even capable of being used in a ported box. if they are, find out what they require (airspace, port length, etc..). there are math equations out there that take away any guessing and tell you straight up what you need to know. i'd be very suprised to learn that your current box can be easily converted into a ported box.


and about your noise... check your amp's settings before you tear apart your box... it sounds like something might need to be adjusted a little and that's it.
Reply With Quote
  #18  
Old 10-12-2008
jaycheetwood's Avatar
Member
 
Join Date: Sep 2008
Location: Ogden, Utah
Posts: 2,218
subs have air space requiremtns.. too much airspace.. and the sub wont be good.. some subs only need limited airspace such as rockford fosgate.
Reply With Quote
  #19  
Old 10-13-2008
Member
 
Join Date: Sep 2007
Location: LANSING, MI
Posts: 339
just to let you know this is a jerk comment but take it also from a professional installer, you have junk and junk sounds like junk. pyle is the lowestest of the low in quality. dual is junk also. it is probly a combination of things that are your issue. amp not properly tuned. should be set on low pass filter, hz set to 80hz, gain should never be turned all the way up turn it up till you here the subs distort at 5/8 volume then back the gain off just past where they stop distorting. also never never never use bass boost. also bad rca's are also somewhat of an issue, spend the money on a nice set from knukonceptz or RF or stinger. the box volume could be to large or small for the subs. also the subs are probly not designed to be downfired. and box might have a leak, and is it 3/4" mdf or 5/8" mdf or particle board. you always want 3/4" mdf or birch ply(birch because it is lightweight and still strong). you can port that box but it would not be worth it. shoot me a pm and we can talk about me building you a custom build ported box for those speakers. i always custom build a box for my subs based on the required stats of the sub or subs. that will get you the best sound and performace out of the sub. also could be the recording of the song, or the song in general. sorry for being harsh but i see it all the time. that is why i work out of my house doing installs instead of in a shop anymore, the CA industry is hurting right now and that means the shops dont have any money to pay me what i want because of my knowledge base and experience.
Reply With Quote
  #20  
Old 10-13-2008
0RangerEdge2's Avatar
Member
iTrader: (2)
 
Join Date: Jun 2005
Location: Ohio
Posts: 2,593
Phil I think it's time to upgrade those subs and amps. My setup isn't the best with a Pioneer Premier Sub and Kicker amp but I think you'd be happier with better stuff.

Drew! I didn't realize how close you are to me. We relatively at least. I'm going to PM you.
Reply With Quote
  #21  
Old 10-14-2008
Member
 
Join Date: Sep 2007
Location: LANSING, MI
Posts: 339
i say buy 2 alpine type s subs duals 2ohm wire them to 2 ohm final load and get a pioneer GM-D8400M amp i have done about 15 of those exact setups and all but 1 have sounded great. the one that didnt sound great was because a fellow installer built the box and he liked to use a circular saw instead of the $1500 table saw and his cuts were not straight and that caused the box to leak.
Reply With Quote
  #22  
Old 10-14-2008
yellow_edge's Avatar
Member
Thread Starter
 
Join Date: May 2008
Location: Wauseon,Ohio
Posts: 760
ok, its really not a big deal the crossover freq. was a little f'd up. thats all. and i dont really care 'how low on the list pyle is' but i wasnt going to turn down an offer for those subs for 20 bucks from a friend. it sounds just fine to me u guys...drew...are blowing this a little out of proportion
Reply With Quote
  #23  
Old 10-14-2008
Member
 
Join Date: Sep 2007
Location: LANSING, MI
Posts: 339
i am just trying to educate you. $20 isnt bad for a starter system but i highly suggest buying new subs and an amp and you will be like why did i waste my money on that previous setup. so i nailed your issue right on the dot crossover not set properly.
Reply With Quote
  #24  
Old 10-15-2008
nbro3232's Avatar
Member
iTrader: (1)
 
Join Date: Jul 2006
Location: Nokomis, FL / Tallahassee
Posts: 784


when porting a sub box, port length and size come into play
the box usually has to be designed to be ported from the beginning and it will be specific to the type of sub you use
Reply With Quote
  #25  
Old 10-29-2008
akjay907's Avatar
Member
 
Join Date: Jul 2008
Location: Anchorage, Alaska
Posts: 16
prefab boxes are ****ty and a waste of money.

build your own box. it be cheaper. you bough crap subs, crap subs are going to sound like crap.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
For Sale: Custom Sub Box, amp and 12" Sub, Ex Cab only - Melbourne, FL pushdeck Interior, Exterior, Electrical, & Misc. 1 05-02-2010 11:39 AM
4.0 ohv intake porting ringer4x4 4.0L OHV & SOHC V6 Tech 1 12-21-2008 06:34 AM
in need of sub box just purchased sub/amp :) crucialcolin Audio & Video Tech 13 06-21-2008 10:13 PM
Need help porting timpat92855 Audio & Video Tech 8 01-04-2007 05:35 PM
Porting a box vansnxtweek Audio & Video Tech 15 11-20-2005 02:52 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 04:38 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.