the "shake" of the bass quick question

[marcotheclepto 10+ year member]

okay so this may be a noob question but is spl directly related to the shaking of the bass? what you feel?

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[warriorlax45 10+ year member]

no not at all. spl=sound pressure level. how loud the system is

 

[marcotheclepto 10+ year member]

yes im aware of that but is there a measurement of the feel of the bass? or does that depend on other values such as excursion and cone size?

 

[dragnix 5,000+ posts]

it depends on you

 

[o. l. t. 10+ year member]

A pair of bass shakers in your seat will rattle your butt just as well as a good pair of tens and you will have no SPL from it at all.

You can also have a lot of shake without a lot of SPL depending on how you set up the subs. Corner loading can produce a lot more body reflection without increasing the SPL by more than 2 or 3 db at best. You'll have a noticeable amount of shake increased as opposed to non corner loading setups using the same equipment.

SPL may be relevant to the pressure levels in the air, but the pressure levels are related to what you are putting INTO the air. Vibrating the air at certain higher frequencies produce a ripple that may move through the air quicker, but not move as much air as a different frequency. Lower frequencies produce larger waves which move more air and help to increase SPL, but do not be fooled as higher frequencies can produce high spl due to the speed they move. The density of the air, humidity, temperature, are all relevant in producing SPL.

Your best bet for producing high SPL is to use a frequency that will work best in your climate. Florida has a higher humidity and therefore has a more dense air. More dense air is heavy and harder to move so a higher frequency will cut the air better and you may have better luck producing higher SPl levels. The reverse thinking of that is that is that if your setup is so ungodly powerful that you can power through the denser air, you may be able to push the denser air at a lower frequency to produce a harder impact and be effective at high levels of SPL at lower frequencies.

Therefore I recommend that lower power systems under 1000 watts in humid climates tune to a higher frequency for maximum SPL. Lower power systems in cold dry climates can tune lower since the air is less dense and they can move the air easier at lower frequencies than in humid climates. The flip side of this is of course you have to determine all this before you build your box since your box needs to be at that frequency.

SO,...........

Higher power systems in humid warm climates need to tune low and take advantage of the more dense air.

Higher power systems in cold dry climates need to tune higher and take advantage of the lighter air.

Lower power systems in humid warm climates need to tune high and avoid having to push the more dense air at lower freqs.

Lower power systems in cold dry climates need to tune lower and take advantage of the lighter air.

The lower power systems have to tune for efficiency and take advantage of the climate working in their favor if tuned properly.

 

[skylineTT 10+ year member]

A pair of bass shakers in your seat will rattle your butt just as well as a good pair of tens and you will have no SPL from it at all.
You can also have a lot of shake without a lot of SPL depending on how you set up the subs. Corner loading can produce a lot more body reflection without increasing the SPL by more than 2 or 3 db at best. You'll have a noticeable amount of shake increased as opposed to non corner loading setups using the same equipment.

SPL may be relevant to the pressure levels in the air, but the pressure levels are related to what you are putting INTO the air. Vibrating the air at certain higher frequencies produce a ripple that may move through the air quicker, but not move as much air as a different frequency. Lower frequencies produce larger waves which move more air and help to increase SPL, but do not be fooled as higher frequencies can produce high spl due to the speed they move. The density of the air, humidity, temperature, are all relevant in producing SPL.

Your best bet for producing high SPL is to use a frequency that will work best in your climate. Florida has a higher humidity and therefore has a more dense air. More dense air is heavy and harder to move so a higher frequency will cut the air better and you may have better luck producing higher SPl levels. The reverse thinking of that is that is that if your setup is so ungodly powerful that you can power through the denser air, you may be able to push the denser air at a lower frequency to produce a harder impact and be effective at high levels of SPL at lower frequencies.

Therefore I recommend that lower power systems under 1000 watts in humid climates tune to a higher frequency for maximum SPL. Lower power systems in cold dry climates can tune lower since the air is less dense and they can move the air easier at lower frequencies than in humid climates. The flip side of this is of course you have to determine all this before you build your box since your box needs to be at that frequency.

SO,...........

Higher power systems in humid warm climates need to tune low and take advantage of the more dense air.

Higher power systems in cold dry climates need to tune higher and take advantage of the lighter air.

Lower power systems in humid warm climates need to tune high and avoid having to push the more dense air at lower freqs.

Lower power systems in cold dry climates need to tune lower and take advantage of the lighter air.

The lower power systems have to tune for efficiency and take advantage of the climate working in their favor if tuned properly.

this guys the O.G.

 

[grooverider 10+ year member]

wow o.l.t. you really know your shit!!! That was a really good informative read. Thanks.

 

[marcotheclepto 10+ year member]

A pair of bass shakers in your seat will rattle your butt just as well as a good pair of tens and you will have no SPL from it at all.
You can also have a lot of shake without a lot of SPL depending on how you set up the subs. Corner loading can produce a lot more body reflection without increasing the SPL by more than 2 or 3 db at best. You'll have a noticeable amount of shake increased as opposed to non corner loading setups using the same equipment.

SPL may be relevant to the pressure levels in the air, but the pressure levels are related to what you are putting INTO the air. Vibrating the air at certain higher frequencies produce a ripple that may move through the air quicker, but not move as much air as a different frequency. Lower frequencies produce larger waves which move more air and help to increase SPL, but do not be fooled as higher frequencies can produce high spl due to the speed they move. The density of the air, humidity, temperature, are all relevant in producing SPL.

Your best bet for producing high SPL is to use a frequency that will work best in your climate. Florida has a higher humidity and therefore has a more dense air. More dense air is heavy and harder to move so a higher frequency will cut the air better and you may have better luck producing higher SPl levels. The reverse thinking of that is that is that if your setup is so ungodly powerful that you can power through the denser air, you may be able to push the denser air at a lower frequency to produce a harder impact and be effective at high levels of SPL at lower frequencies.

Therefore I recommend that lower power systems under 1000 watts in humid climates tune to a higher frequency for maximum SPL. Lower power systems in cold dry climates can tune lower since the air is less dense and they can move the air easier at lower frequencies than in humid climates. The flip side of this is of course you have to determine all this before you build your box since your box needs to be at that frequency.

SO,...........

Higher power systems in humid warm climates need to tune low and take advantage of the more dense air.

Higher power systems in cold dry climates need to tune higher and take advantage of the lighter air.

Lower power systems in humid warm climates need to tune high and avoid having to push the more dense air at lower freqs.

Lower power systems in cold dry climates need to tune lower and take advantage of the lighter air.

The lower power systems have to tune for efficiency and take advantage of the climate working in their favor if tuned properly.

seeing as how i have yet to build my box, will be doing so later today your saying that if i load the woofer near the corner of the box i get more shake? i havnt decided between ported or sealed yet because this is my first box id have trouble building a ported box. im putting in an 18 and for a ported on an 18 gonna take larger amount of cubic footage and i have enough space but my trunk is shaped weird. would have to have many awkard demensions.

 

[o. l. t. 10+ year member]

Try to let google help you some on key words, such as corner loading.

 

[marcotheclepto 10+ year member]

kk will do thanks

 

[marcotheclepto 10+ year member]

from the short searching that i got corner loading involves loading the entire sob box in hte corner of a room. but the box will be built in the trunk of my car and it will most likely take up too much space to be simply put in a corner.

 

[Bass Addict 10+ year member]

very good read indeed !!

 

[vandiar2 10+ year member]

A pair of bass shakers in your seat will rattle your butt just as well as a good pair of tens and you will have no SPL from it at all.
You can also have a lot of shake without a lot of SPL depending on how you set up the subs. Corner loading can produce a lot more body reflection without increasing the SPL by more than 2 or 3 db at best. You'll have a noticeable amount of shake increased as opposed to non corner loading setups using the same equipment.

SPL may be relevant to the pressure levels in the air, but the pressure levels are related to what you are putting INTO the air. Vibrating the air at certain higher frequencies produce a ripple that may move through the air quicker, but not move as much air as a different frequency. Lower frequencies produce larger waves which move more air and help to increase SPL, but do not be fooled as higher frequencies can produce high spl due to the speed they move. The density of the air, humidity, temperature, are all relevant in producing SPL.

Your best bet for producing high SPL is to use a frequency that will work best in your climate. Florida has a higher humidity and therefore has a more dense air. More dense air is heavy and harder to move so a higher frequency will cut the air better and you may have better luck producing higher SPl levels. The reverse thinking of that is that is that if your setup is so ungodly powerful that you can power through the denser air, you may be able to push the denser air at a lower frequency to produce a harder impact and be effective at high levels of SPL at lower frequencies.

Therefore I recommend that lower power systems under 1000 watts in humid climates tune to a higher frequency for maximum SPL. Lower power systems in cold dry climates can tune lower since the air is less dense and they can move the air easier at lower frequencies than in humid climates. The flip side of this is of course you have to determine all this before you build your box since your box needs to be at that frequency.

SO,...........

Higher power systems in humid warm climates need to tune low and take advantage of the more dense air.

Higher power systems in cold dry climates need to tune higher and take advantage of the lighter air.

Lower power systems in humid warm climates need to tune high and avoid having to push the more dense air at lower freqs.

Lower power systems in cold dry climates need to tune lower and take advantage of the lighter air.

The lower power systems have to tune for efficiency and take advantage of the climate working in their favor if tuned properly.

nice read o.g thanks