4th order build for 2 15" tc-3000s

[Wkbdkid]

Started tonight on a 4th order build(designed by 80inches). Has somewhere round 200 sq.in. of port area. Got all the wood cut and assembled the port for tonight. And now for the pics
All wood cut a ready to go

200" of port area

Gotta love all that saw dust

Thats it for now more pics up tomorrow

[skadude016]

looks good thus far.

[Trey803]

what exactly is a 4th order

[Wkbdkid]

the subs are in a sealed enclosure and they fire into a ported enclosure, pretty sure thats what it is . mine is 5.7ft^3 sealed playing into 4.27@82hz with a -3db roll off at 40hz

[Wkbdkid]

looks good thus far.

thank ya sir

[Trey803]

same as bandpass?

[skadude016]

same as bandpass?

there are many different variations of bandpass but yes this is one of them

[iamamp3pimp]

this an SPL box?

[BOCCOstunna]

i neva really understood the high tuning of the ported part

[mike dressure]

looking good keep up the good work.updates also

[iamamp3pimp]

with a 4th order there are 2 peaks

first peak is low due to the sealed side.

second peak is high due to the ported side.

[Goldtaz1]

Is there some sort of tutorial for dummies when it comes to designing a bandpass enclosure because I have the downloadable spreadsheet from www.diysubwoofers.org and it is confusing at best?? I don't really understand how to interpret the output data from the spreadsheet in order to successfully build a bandpass that will rock my socks off. Someone please help shed some light?

[nismos14]

Looks like fun! Interested in seeing the final product.

[Wkbdkid]

this an SPL box?

Its not suppose to be. 80 designed it and Im making what he told me. Wont be able to work on it until bout 5. Only able to work on it after i work.

[Wkbdkid]

Thanks for all comments. More pics late tonight.