Let's say i have a 8" subwoofer 500watts rms (with and apropiate amplifier for its rms watts), and a 12" subwoofer 100watts rms (also with its apropiate amplifier for its rms watts).
which one will sound louder, bass deeper and able to be heard from a farer distance?
Why would you want other people to hear your system??? Anyway I would go with the 8" if it's the same sub. 100 watts to a 12" isn't going to be louder than an 8" with 500 watts. Depending on the box, the 12" will hit lower.
this is exactly the sort of thread that got me going about that other guy and his comments about shaking things off of people's walls. See what I mean by people always asking how far away you can hear them with a system?
Ok truth is there's no definitive answer here. you need to calculate box type, cabin gain, speaker sensitivity, power handling, excursion, and cone surface area to name a few of the factors.
it really comes down to how good each of the two subs really is. too much gray area but if I had to guess, I'd go with the 8" with 5 times the power.
It makes absolutely no sense what so ever to want other people to hear your system from a distance. I spent a lot of money deadning my car so people cant here it. The only thing they see is the excursion of the trunk and the back window shaking and maybe just maybe a lil muffled sound coming out of the car. I pride myself in the fact that people cant hear the car coming from down the block.
You guys are forgetting something here. In order to gain 3db, you need to double the power. So going from 100W to 200W is a 3db gain. Then from 200W to 400W is another 3db gain. So from 400W to 500W is only about a .75db gain. Therefore you only have appx 6-7db gain power wise.
So comparing the subs, the 12" is much more efficient assuming they were comparable subs. For a system to be 2X as loud you must have a 10db gain, 3db is the lowest measurement that is audibly noticed by the ear. Therefore, they would be pretty comparable. The 12" would probably be a little lower though depending on the box.
if u want ur bass heard from a distance its the box u can have a bad or go0d sub its all the box if u want if 2 b heard u would want ur box tuned 2 around 30hz it will sound go0d i learned from sean an i tryed it an works great
if u want ur bass heard from a distance its the box u can have a bad or go0d sub its all the box if u want if 2 b heard u would want ur box tuned 2 around 30hz it will sound go0d i learned from sean an i tryed it an works great
Nathan work god dam post
Unregistered guest
Posted on
look the amount of power needed to drive a sub dosent affect its acostical output
obviously the 12" will be better, it has a large surfice area so will emit more volume and deeper bass
small cones dont hit low perioud, there gd for crappy high boomy mess bass andyway a sub is never driven at the power ist rated at
u can drive a 600w peek sub as a full undistorted volume with just say 50w if the sub is good enougth
higher power raiting dosent mean more sound just meens u can feed it more power
stick with the 12" sub i would and give it a sealed box of say 1-1.5 cubic foot, then staple thick fibeglass compressed to say a inch around the inside of the box
sealing a sub rises its power handeling anyway and rms power is bollox, and when a sub says say 600w that is peek it would blow at that!!!!! or sound extreamly distorted for a 600w sub the rms is about 200 and the atual needed power is about 30-100w
double the audible volume is roughly 6 to 10dB gain, or between four to ten times the power, but these are all basic rules of thumb and not absolutes. Therea re, once again, far too many variables in the original question to give any decent, remotely accurate answer.
he never even said if both subs are the same make and product line or not.
Glass lets say they are the exact same subs same power rating and everything with boxes that allow them to function at their peak. Or this question, what factors reinforce the distance the sound will travel.
"Or this question, what factors reinforce the distance the sound will travel."
atmospheric conditions like humidity and elevation above sea level, air density, vehicle sound deadening, amount of power applied, amount of air displaced by the speaker (excursion and surface area), the frequency of the tone being generated, and so forth.
the distance sound travels is basic acoustics or physics, really. That's easily googled.
Chris ain't a professional, GlassWolf, Jon and Isaac do.
Comprende? i GUESS, this site is to clarify doubts, or to try to help people (like me) who knows NOTHING about car audio, and want to invest the best way their money, comprende? Therefore, if a question is sooooooo easy or obvious for you (or so stupid), why care answering or complaining about that? So don't be a jerk ok? I still have MUCHO questions, no one is to be born with knowledge.
He wants the sound to travel. No offense panamanian but guys like you around where i live are the reason why there are sound ordinances going into to effect everywhere which is annoying when you are trying to tweak and test your subs
ok, all else being equal, same sub brand and models, with one 8" at 500 watts and one 12" at 100 watts. same type of box, built to spec, and same vehicle. both subs can take 500 watts with excursion to spare in the respective enclosures..
the 8" would be louder. five times the power makes up for the difference in cone area if both subs aren't maxing out their excursion at either power level.
Hey Pana. I know i am not a professional or anythign like that, that is why i put LOL at the end of it. I do however know more then alot of other people do and am able to help out the NOOBS. I know that i am in no way even close to knowing anywhere near as much as GlassWolf and some others on here.
well, in your example yes.. that much power compared to that many inches.
if you want to know strictly which is better, more excursion or more surface area, the surface area is usually the more beneficial. you need to use a fair and equal comparison though.. here:
going from one sub to two subs gives +3dB doubling teh power (within speaker limits) gives +3dB going from sealed to ported enclosures with a single sub will also give about +3dB gain
see, it's a matter of how much improvement you get with how much change in power or excursion and surface area
Nathanwdwff
Unregistered guest
Posted on
look what idiot said they were not talking 2 me just because i have more knolage than them???
u dummass u dont even know the difference between rms and raw power???? your thick m8 no offence lol, 12"=larger surfice area=more volume and bass=easyer to drive so u dont have 2 waste money on a higer wattage amp=yoru thick
"u dont even know the difference between rms and raw power?"
define "raw" power please. I know what RMS, peak, and max power are. I even know what PMPO and music power are. I have never seen anything in the audio world referenced as "raw power."
what makes you think a 12" speaker is easier to drive than an 8" would be? the 12" speaker has more moving mass which is going to take more energy (and a stronger BL) to control it.
you also may want to look into the use of a spelling checker.
I think this thread is pretty much done. The initial question was answered already.
ONE LAST QUESTION!!! Muddy Waters: Where can I buy a TREO sub? I've looked everywhere, I even emailed treo. No local dealer, and can't find one on ebay, that's for sure!!! They wouldn't even give me a MSRP either. Thanks.
the only way to get one of their subs is from an authorized dealer. if you buy one off the internet, it will not have a warranty, no matter what the seller claims. i might be able to get you a price,depending on what sub it is. the audioshop down the street from where i live is an authorized dealer. that is where i get all of my info from.
