how to get more db

hello all, i have a 2008 dodge ram single cab pick up, i have

4 diamond audio d1 10's

diamond d3 1001.1

diamond d1 400.1

alpine type r 6.5 components

i am hitting 130-133 db (measured on my friends scoche db meter) i dont knwo how accurate it is but how hard is it really to get to 140db, my original box hit  alittle harder but i couldnt lift the center seat so we had to make a new one, that would allow my console to lift, if i remember correctly the box is .70 cu ft per sub and its seperated into two chambers so 1.40 cu ft per chamber housing two subs per chamber.

also curious what frequency should give the highest reading, im just taking the reading off of music, not test tones.

thanks in advance.

If you're hitting 133 db now, you would need to double the power to reach 136 db.  A different size or type of enclosure  might give the same boost, but  you have already compromised for the sake of the cab space.  Possible, also, is a change in sub placement or direction.  Just keep in mind that you double the power for +3 db and go from there.  That's why SPL is so experimental in nature.

Try to keep from frying your subs' voice coils by playing sine wave tones at that loud of a level.  If you are testing for nothing else but bragging rights, just keep adding power and all that goes with that, and keep working on best enclosure and positioning.  Take the extra space that is needed for the best enclosure even if you have to give up your girlfriend's seat (what's more important...SPL?) 

The readings you are taking are not entirely accurate, so just have fun with the process.  Extra decibels are hard to find when you are at that level.  My best guess is that you add another sub amp, four more subs, bigger alternator, beefier wiring, more sheet metal damping, a beefier battery...to add 6 db.  Oh, and you also give up the entire passenger side of your truck's cab to fit all the sub enclosures.

trust me id like to not have to worry about seating, but the car seat has to go there sometimes, so i pretty much topped out for a single cab truck, barring a bed cut which i wont do cause its brand new. so basically just upgrading to the next higest sub with a larger voice coil and slightly longer xmax wouldnt do me much good?

thanks for the quick response btw.

Dude, you've got a truck payment, a wife and a baby son.  You've got plenty to worry over besides trying to score db points with your friends.  I suggest you should make the install as perfect as you can get it with what you got...and be proud of your accomplishments.  Biggest reason I say this is SIZE.  You're maxed out.  Twelves take up more room, more power costs a lot of money, and you're not in a position for real competition.

it's like squeezing 1000 hp out of a camry.  You don't have the ride for SPL, room, and there are too many things stacked against you, to do exactly what you're looking for.

Adding more power will give you the extra db's as long as you have the subs to take it.  Double the power for +3db.  If you want to get the highest reading out of your system, you'll need test tones to determine which frequency gives you the most output.  Music CD's are great for "trying" to get the good readings, but to get every last drop out of your system, you'll need the proper test equipment, and the proper testing procedure.  There are specific testing requirements in competition.  You might find the "sweet spot" in your vehicle that yields 140+db in your ride, but if it's not tested properly, it's a false number.

BTW... IMHO, any dimwit with a 130+ db system riding with a car seat, needs a serious adjustment to reality.

ok and im not trying to be a dick, but, steve i make enough money to not have to worry about that. and besides i get around 9000 back on my tax returns, which is were the system came from in the first place, so its not like im not paying the cellphone bill so i can get more subs. and the car seat thing, seriously is a incase i have to kind of thing, i have a 4 door f150 also that the family goes in but if i go riding 4 wheelers i take that instead of my dodge. so in that event the car seat has to go in there, and im not trying to impress my friends, this is by far the loudest system ive ever had i was just wondering if there was anything i could do to get more that wasnt radical like a bed cut cause i got a few dudes at work that say  i got ripped off and a different brand would have produced more db, and youve answered that, thank you, i just really dont get where the dimwit with a 130 db system comes from, are you jealous or something? where i put a car seat and when it goes where it goes is my business, you act like i roll with my son blaring the radio and hes crying. and i agree if that were the case i would be a dimwit, but anywho, thanks you did answer my question, albeit coming across a douche bag, well at least megaman.

thanks again the fat kid.

the fat kid wrote:

---

well ive had it for 5 or 6 months ,and im not deaf, and i was noticing that the db drag race numbers are around 145 idk just wondering if  i could get closer to that, and fyi, the interior sound of my truck is at 83db with nothing on,just ac and windows up, hope i dont go deaf from that.

---

If your vehicle produces 83db with just the a/c on and the windows rolled up, you need a muffler.  And although 85 is generally considered the magic number to be dangerous, you could go deaf from 83db (although it would probably take about 16 hours continuous exposure to cause hearing damage.)  The point I am making is 130db is louder than you need daily driver levels to be, so it sounds like unless you are competing (or, like others have said, are involved in "mine is bigger" contests with other kids in your area) then you are plenty loud.  The cost of getting louder is high, although not just money, it is also in modifying your vehicle or giving up things like baby seat space.  (BTW, a baby's hearing could be damaged by 83db MUCH faster than yours.)  Perhaps these web sites might help you: 
https://www.dangerousdecibels.org/hearingloss.cfm
https://www.shurenotes.com/issue8/article.asp?flash=true
https://www.aafp.org/afp/20000501/2749.html

How many installers or salesmen tell these kids that this systems they have just sold them could cause them

to have hearing loss. None Everyone asumes you know this. But alot of kids do not. DYohn is not scoldin' him

just informing him

DYohn] wrote:

---

es, well, anyone who talks about wanting to get to 140db in a vehicle that they also use to carry a child in a baby seat needs to be educated about hearing damage due to excessive noise.  A kid deserves to make its own decision about going deaf, not have it forced on them by their parent. 

---

i know your a mod and try and not take this the wrong way but really terminator hit it on the head, the car seat goes in when i take the other "family" truck to hauld my fourwheeler around, and im not a retard i know im going deaf and i listen to sports radio when my sons in the car, now if that satisfys the child protective service here thanks on the replys, the truck is getting lowered and (fingers crossed) shaved this winter and i was kinda thinkin if i think it looks good enough i might try to dabble in the show scene that being the case i was just wondering if i could go louder without anythign drastic being done, cause i still (sometimes) have to put a car seat in there if the wife is driving it.

and the 130db better than everyone thing, why cant someone just have one that loud cause thats what theyre into, ive had subs in every car ive had since i was 15, i finally make enough money to do something that i really want to do and im getting flamed for it, from a moderator on a car audio forum no less.

oh and i do have muffler a flowmaster 50hd and gibson headers, it could be an inacurate meter idk but at 2000 rpm windows up it says right around 80db

i guess you cant edit these, but anywasy i really do want to thank you all for the information./