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putting a wall of 15" subwoofers and 15000 watts
Topic Started: Dec 15 2014, 06:42 PM (3,121 Views)
Potter
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Col. Potter

uncle bill
Apr 3 2015, 09:10 AM
I have 2 9500 mtx 15s no wall doing about 154db on low volume. It hits so hard that the cd can't play and usb continually jumps out os the radio port at low volume. Everytime I play my music with doors open it makes you panic from so much pressure.... yet my goal is 160db with no wall... is there anyone can advise me to achieve my goal
2 more woofers and power to run it
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banginmetro64
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uncle bill
Apr 3 2015, 09:10 AM
I have 2 9500 mtx 15s no wall doing about 154db on low volume. It hits so hard that the cd can't play and usb continually jumps out os the radio port at low volume. Everytime I play my music with doors open it makes you panic from so much pressure.... yet my goal is 160db with no wall... is there anyone can advise me to achieve my goal
what did you use to measure your car spl?
where was the meter placed?
that is an impressive number. doubling your power will gain you up to 3db. doubling the cone area will gain as well but you will loose if you do not power the extra woofers.

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Greywolf
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Mostly Harmless

t3ragtop
Feb 24 2015, 07:51 PM
i guess that i take exception to your statement that low frequencies at high pressure levels are less harmful than higher frequencies.

in reality it is absolutely the opposite.

low frequencies at high sound pressure levels cause extensive inner ear nerve damage through bone conduction so that even if you wear mickey mouse ears you can still sustain irreversible hearing loss.

i was a weapons type in the navy and while seated in a radar control chair in a compartment below and aft of the 5"54 cannon i was firing 12 hours at a crack during shore bombardments, i sustained a good deal of low frequency nerve damage from the muted concussive blasts while i was wearing hearing protection.

126db is the threshold for pain and about the level of a jet engine. that pain is telling you something. :P 150db in the bass regime cannot be ameliorated by using mickey mouse ears and sound pressure levels that high, even for a short period mows down the cilia in the cochlea and damages the nerves. bone conduction of low frequencies is much more pronounced than higher frequencies and even if you aren't slamming your ear drums, hammers, and anvils with huge pressure waves the bone conduction still causes the nerve damage.

i just don't want you fooling yourself. you will sustain a hearing loss. ;)


What T3 is telling you is the truth

I can understand reproducing sounds at the level they are played - such as a concert. Using horns and tweeters to reproduce the accurate sound of a musical presentation - yes.

This I do NOT - it is harmful

You are blowing up your ears, and you will never get them back


I cannot for the life of me understand the fascination with huge DISTORTED bass signals pounding into your ears - it is foolish, and will cost you your own ability to hear anything accurately


Talk to me in ten years when you have a bone conduction hearing aid if you are lucky - and I can still hear birds and crickets in the woods when I go hunting with what I was born with.
Edited by Greywolf, Apr 10 2015, 11:58 PM.
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banginmetro64
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Greywolf
Apr 10 2015, 11:39 PM


I cannot for the life of me understand the fascination with huge DISTORTED bass signals pounding into your ears - it is foolish, and will cost you your own ability to hear anything accurately


Talk to me in ten years when you have a bone conduction hearing aid if you are lucky - and I can still hear birds and crickets in the woods when I go hunting with what I was born with.
i am sorry that you have only heard huge DISTORTED bass systems. you will have to get into some real, true sounding systems then. you can have extremely loud vehicles without distortion or clipped signals. its all in the tuning. when you hear some SQ cars out there doing 150+db and getting some of the best sq numbers then that should change your mind. i have been doing what i have been doing for well over 13 years and have not had any hearing issues at all.
One cannot guarantee one will sustain hearing loss unless you are a ear dr. and have seen the history of his/her medical/hearing stats. for you to say that it WILL cost one their own hearing ability is just incorrect as one cannot speak on behalf of another ones health, being hearing or sight or anything else medical related.
i understand it works both ways as well.
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Potter
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Col. Potter

Greywolf
Apr 10 2015, 11:39 PM
t3ragtop
Feb 24 2015, 07:51 PM
i guess that i take exception to your statement that low frequencies at high pressure levels are less harmful than higher frequencies.

in reality it is absolutely the opposite.

low frequencies at high sound pressure levels cause extensive inner ear nerve damage through bone conduction so that even if you wear mickey mouse ears you can still sustain irreversible hearing loss.

i was a weapons type in the navy and while seated in a radar control chair in a compartment below and aft of the 5"54 cannon i was firing 12 hours at a crack during shore bombardments, i sustained a good deal of low frequency nerve damage from the muted concussive blasts while i was wearing hearing protection.

126db is the threshold for pain and about the level of a jet engine. that pain is telling you something. :P 150db in the bass regime cannot be ameliorated by using mickey mouse ears and sound pressure levels that high, even for a short period mows down the cilia in the cochlea and damages the nerves. bone conduction of low frequencies is much more pronounced than higher frequencies and even if you aren't slamming your ear drums, hammers, and anvils with huge pressure waves the bone conduction still causes the nerve damage.

i just don't want you fooling yourself. you will sustain a hearing loss. ;)


What T3 is telling you is the truth

I can understand reproducing sounds at the level they are played - such as a concert. Using horns and tweeters to reproduce the accurate sound of a musical presentation - yes.

This I do NOT - it is harmful

You are blowing up your ears, and you will never get them back


I cannot for the life of me understand the fascination with huge DISTORTED bass signals pounding into your ears - it is foolish, and will cost you your own ability to hear anything accurately


Talk to me in ten years when you have a bone conduction hearing aid if you are lucky - and I can still hear birds and crickets in the woods when I go hunting with what I was born with.
do you stick your ear plugs in your ears before you pull the trigger when you hunt?
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myredvert
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myredvert

Quote:
 
i am sorry that you have only heard huge DISTORTED bass systems. you will have to get into some real, true sounding systems then. you can have extremely loud vehicles without distortion or clipped signals. its all in the tuning. when you hear some SQ cars out there doing 150+db and getting some of the best sq numbers then that should change your mind. i have been doing what i have been doing for well over 13 years and have not had any hearing issues at all.
One cannot guarantee one will sustain hearing loss unless you are a ear dr.
This whole idea that as long as the sound quality is good enough, that SPLs far in excess of those that hearing specialists have determined to be well beyond the threshold of those that will cause hearing damage is pure fantasy/denial. This "argument" makes me think of an alcoholic trying to convince others that they have been drinking heavily for years and it has never impaired their ability to drive, in part because they drink "high quality" booze.

While it is true that different people will suffer damage differently and at at different rates, and the specific degradation in response to different frequencies can vary, no one is "immune" to SPLs as high as you apparently believe you are. And I seriously doubt that you have ever had a hearing specialist tell you that repeated exposure to the levels you claim you regularly experience is nothing to be concerned about.

Being a stereo installer doesn't qualify you to turn hearing physiology issues and what is well known and documented about the dangers of repeated exposure to high SPLs on its ear (pun intended). Even if you are still able to "hear" the evidence and recommendations of the scientific community well enough to process the words, you apparently aren't listening to the message.

To try to convince others of a fantasy that can cause them permanent hearing damage/loss is seriously irresponsible.
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Potter
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Col. Potter

Can people not just let us blow our eardrums out in peace. Ffs I'm tired of arguing because its a loosing battle on both sides. If you don't agree on what's going on I'm this thread then keep your fingers off the keyboard, for fuck sake. I'd like to see what this gentleman is building. If you keep bashing then no one gets to see it. This happens on every stereo thread that involves a bass system capable of 140+db. And I'm tired of seeing it. I could weigh in on the argument but instead I'm gonna call out how some fuck heads just wanna act like tools and try to warn us about shit we already know about.

Now if the ignorant ass hats are done I would like to see more of this build. If you want to argue hearing loss go to the lounge and start a thread. Or I can school you in a PM either way I don't care. As Long as its not in someone's build thread

/end hijack
/end rant
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banginmetro64
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im getting the feeling that stereo builds are not allowed by the members on this forum as they take away from the magical mpg's that some are only trying to achieve. i for 1 do not care about how much money i am saving by driving a geo. potter is correct. if you do not like the content of the thread then just stop looking/typing as you do not matter to the ones that do care/like it. RANT COMPLETE!! OP, i would love to see more progress if any has been completed.
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t3ragtop
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Turbo3 and Twincam Tweaker

potter, am i the ignorant ass hat to which you refer?

i really could give a hoot about how anyone builds or listens to their car audio system. i merely pointed out the fact that i took exception to the statement that higher frequencies were more damaging to your hearing than low frequencies - a statement that is pure bs.

bangin', i am absolutely not opposed to anyone building and listening to whatever audio system they like. i build them in my cars, too, and could give not one shit about mpg in my own suzuki cars. as a matter of fact, i keep working at them until i reduce fuel economy by at least 25% by stuffing some engine other than a normally aspirated g10 into them. ;)

again, i only took exception to the bad info that subwoofer ranges weren't as bad as higher frequency ranges. i'm not slamming anyone's choices, builds, or cars. there was one thread that showed a guy beatin' up the block with a kid in the car getting his ears blown off. that pissed me off because it was straight up child abuse and anytime anyone abuses a kid i'm all up in their grille.

oh, and potter, i quit hunting years ago but i do wear safety glasses and hearing protection whenever i fire my weapons. i have eaten burning powder from large caliber pistols with bad head spacing and my colt acp machines make my ears ring for days afterwards if i don't wear ear plugs under muffs. my competition 45 also is tuned so that the hot ejected brass beans me on my bald head so i tend to wear a hat. :P
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Woodie
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t3ragtop
Apr 22 2015, 04:15 PM
potter, am i the ignorant ass hat to which you refer?

(SNIP) my competition 45 also is tuned so that the hot ejected brass beans me on my bald head so i tend to wear a hat. :P
Maybe THAT's the ass hat in question.


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t3ragtop
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Turbo3 and Twincam Tweaker

is john galt the asshat? :P
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m4ick
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LOL, this is exactly what happened to me when I posted about my system. Please post pics, there are people here that want to see it!
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Potter
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Col. Potter

*said with a cool head*

Hunting was aimed at greywolf whom has not awsnered my question, if yifzer would have kept their hands off the keyboard, and my red vert trying to teach someone a lesson, and all the others in these high power SPL threads who do not get competition audio would just keep their opinions to themselves a rant would not be in place.

I apologize for any disrespect to the page and apologize to the topic starter for topic derailment. I would love to see other parties do the same.

Again opinions (not facts as you T3 have posted) are like assholes everyone has them. If you don't agree with the topic keep your opinions to yourself.

Bass heads get a lot of flack. If this where a gun build in the lounge and an anti gunner started drama it would be the same rant.

You can poke a bear so many times before something happens. I have at least 1 if not 2 pages in Sophia's thread of this nonsense. I hate seeing fellow bass heads going through the same.

T3 check your pms.
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