Low Frequencies Can't Be Heard

If you enjoyed the previous post and it opened your eyes,trust me,you gonna love this!

Now if we say that after splitting blood you've made a subwoofer or bought one that really can produce 20hz... What now? A question... Where you actually gonna place it and what you gonna play?
Don't say car,bedroom or even a regular living room because i'm gonna throw out an uncomfortable laugh and show you this article.

Sound unlike the Visible Frequencies is Invincible Waves,and those waves are going by frequency.
Let's say in an understandable term that 50hz or cycles are 50 waves per second,or 50 x 60 = 3000 beats per minute.

The low frequencies are needing free space to be produced... I'm clearly not the right person to talk about rooms,but i know some things about the required room size.
As far as i know 20hz are needing about 17m length to be produced properly,according to the Wavelen.

The wavelength is λ = c / f,the λ is the Wavelength,the C is Speed of Sound which is 345m/s on 20 Celsius and f is the Frequency,in this case 343/20hz = 17.15 Meters.

So 20hz in a car or a small bedroom and frequencies bellow 50hz are totally useless except if you want dirt in your music.

What the lowest you can properly have in your Car (with many problems cause of the infinity reflections) is,if we say an SUV has an internal length of 3 meters,then we do a few times with a few frequencies the Speed Of Sound / Frequency which ending us having about 115hz,because 343m/s / 115hz = 2.98m.

In a small room if you try to play really low frequencies with a big subwoofer the whole sound will go BOOM and you will hear a BOOM full of dirt instead of the frequencies that you played and everything will tune to it,so the result will be really bad,but some people don't understand that what their Rooms decides for the frequencies they can play into and NOT Their speakers!

You are having some Satellite Speakers that goes to 120hz with -3db in a Bathroom Sized Bedroom,they lack of bass,because you have the bright desire of having extended bass response,you're placing a Subwoofer that let's say produces easily 20hz,you think the Subwoofer actually makes a nice difference but most times it causes MORE Trouble,and still you have nothing useable near 20h.

If you have a big room and a good subwoofer you pretty basically can have 20hz,but there's no music that can go that down,except if you are talking about Bass Mekanik or a sort of mainstream music without a clue of instruments that is made to go boom-boom and nothing else...
Here i'm talking about a right setup'd and placed system,sound accuracy,and quality,so i exclude those cases and the Logitech's bass heads too.


The things aren't so simple as you expected as i'm explaining them,and you have the right to do everything you want,but i have warned you about the result.

What i didn't mentioned: The Acoustical Response of Rooms,Reflextions,that even if the room is properly for Low Frequencies they will make your room a Dirt Addition to your music.