Weird Vas measurment help with LMS.

[ciaonzo 5,000+ posts]

Note to self, don't search *** on google....

I chuckled to myself as well when I tried it. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[bass_lover1 10+ year member]

I chuckled to myself as well when I tried it. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

I lol'd.

I saw the first hit and was like, wtf? Then it clicked, stupid google.

Reminds me of a Daniel Tosh skit about google, and asian *** ****, lmao.

 

[Mass Car Audio 10+ year member]

I'm still running the numbers my friend.
Can you please give me the rest of the specs that you were provided along with the type of driver? I will enter the parameters into my software and try to extrapolate Vas for you.

15'' Dual 4 ohm Car Audio subwoofer

Vas 261.742m ***

Qts 0.530

Qes 0.644

Qms 2.982

Exm 0.606 in

Fs 29.646

BL 10.911T

Erm 0.767

No 1.024%

SPL 89.1 db

Md 100.000g

1500 watts rms

I have more parameters if you need them.

 

[ciaonzo 5,000+ posts]

Yes please, I need all the numbers to be as accurate as possible. Especially since it's dual voice coil.

 

[mazzasec 5,000+ posts]

I just came in my pants //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[ciaonzo 5,000+ posts]

This thread is brought to you by... COOL CAT!!!!!!!

 

[Mass Car Audio 10+ year member]

Yes please, I need all the numbers to be as accurate as possible. Especially since it's dual voice coil.

Ok here is all the parameters

Revc 3.600 ohm

Fs 29.646 hz

sd 85.530m sqM

Md 100.00g

BL 10.911T

Qms 2.982

Qes 0.644

Qts 0.530

No 1.025%

Spl 89.1db

Vas 261.742m ***

Cms 251.970u M/N

Krm 11.620m ohm

Erm 0.767

Mms 114.383g

Mmd 100.000m kg

Kxm 65.946m H

Exm 0.606

1500 rms

 

[ciaonzo 5,000+ posts]

I came up with a Vas of 261.6 liters or 9.23cu.ft. which sounds about right for a 15" driver with a high Qts. You could probably get away with using this free-air if you wish.

 

[Mass Car Audio 10+ year member]

I came up with a Vas of 261.6 liters or 9.23cu.ft. which sounds about right for a 15" driver with a high Qts. You could probably get away with using this free-air if you wish.

I don't really want to use free-air.

 

[ciaonzo 5,000+ posts]

You're not required to. I was just stating that it was possible.

 

[ciaonzo 5,000+ posts]

If you care to share the make, model, and purpose of this driver I could help you model an appropriate enclosure. It will be sealed and it will be large. It's mostly dependent on how much power you have at your disposal so that I may ensure that excursion is kept in check.

 

[ciaonzo 5,000+ posts]

Having to wait 20 to 30 minute for each of your replies is making me lose interest in helping you for free.

 

[Mass Car Audio 10+ year member]

Its actually a o.e.m car subwoofer i'm testing out from china with no brand. This is all the info I have on this sub and I need a box for it now.

 

[ciaonzo 5,000+ posts]

If you care to share the make, model, and purpose of this driver I could help you model an appropriate enclosure. It will be sealed and it will be large. It's mostly dependent on how much power you have at your disposal so that I may ensure that excursion is kept in check.

Please.

 

[ciaonzo 5,000+ posts]

Yawn.

And now another kitty break.