Good tone to play for some nice excursion?

[Rich B 5,000+ posts]

Cant it blow or something?

Yes, it can

You need to figure out what your sub and box combo cutoff point is before trying any more low HZ tones, otherwise you're risking blowing your sub up.

Especially if you're using a ported box!

 

[Twistid 5,000+ posts]

Yes, it can
You need to figure out what your sub and box combo cutoff point is before trying any more low HZ tones, otherwise you're risking blowing your sub up.

Especially if you're using a ported box!

dont listen to him, hes from california //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[Rich B 5,000+ posts]

dont listen to him, hes from california //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

And playing with car audio from before you were born.

//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Pickler 10+ year member]

How can i figure it out?

 

[Raven 10+ year member]

Free air, I don't see much difference between 15-30 hz on most of my woofers. I usually use 20-25 hz for throw testing ("Did I hit mechanical failure? Nope. Try again tomorrow...")

I have no in-enclosure experience, since the gained output compared to free air would piss off the neighbors.

 

[T3mpest 10+ year member]

In a ported box you gain output by using the port area to your advantage, the box makes the noise. Essentailly, the fact that your box has holes in it makes it louder a few hz above tuning, the backwave of the sub is able to combine with the front. However, if you go below tuning, the holes in your box (ports), become just that, holes in the box. The sub will act as if it's freeair and can easily bottom out, leading to mechanical failure. A common rule of thumb is to set the SSF 1/2 octave below tuning. IN your case 37/2=18.5 37-18.5 is approx 18hz. A tone that low would quite possibly kill your woofer (check out KB for more info:laugh:

So try a mid 20's tone, maybe 25 if 30hz isnt' giving you what you want. Or just block your ports and turn the bisch up!

ps. 15hz tones free-air looks neat.

 

[Pickler 10+ year member]

In a ported box you gain output by using the port area to your advantage, the box makes the noise. Essentailly, the fact that your box has holes in it makes it louder a few hz above tuning, the backwave of the sub is able to combine with the front. However, if you go below tuning, the holes in your box (ports), become just that, holes in the box. The sub will act as if it's freeair and can easily bottom out, leading to mechanical failure. A common rule of thumb is to set the SSF 1/2 octave below tuning. IN your case 37/2=18.5 37-18.5 is approx 18hz. A tone that low would quite possibly kill your woofer (check out KB for more info:laugh: So try a mid 20's tone, maybe 25 if 30hz isnt' giving you what you want. Or just block your ports and turn the bisch up!

ps. 15hz tones free-air looks neat.

What should i use to block the ports?

 

[Raven 10+ year member]

ps. 15hz tones free-air looks neat.

My personal Favorite is 4 hz, but it's hell on the woofer, even free air.

 

[DBfan187 5,000+ posts]

1Hz

 

[skadude016 5,000+ posts]

1Hz

jus so cute

 

[Immacomputer 10+ year member]

Some people are just morons.

Use ****ing common sense and your eyes for seeing how your sub performs below tuning. God ****, is it really so ****ing hard to do? What the hell is wrong with people????