[Folsom]

Hey, was hoping someone could tell me what that would be.

I can't run the sim in winISD atm till I get my current version of Linux working with Wine.

(I don't need any advice or thoughts on the subject of tuning, just the port size)

[mcgsxr]

Not sure what port size you're working with.  Or what minimum port diameter Danny recommends.  I recall this kit works in a 0.5 cubic foot box.

For a 1 inch port the length would be 2.5 inches.  That may prove to be too small in diameter.

For a 1.5 inch port, the length would be 7.5 inches.

[Danny Richie]

Hey, was hoping someone could tell me what that would be.

I can't run the sim in winISD atm till I get my current version of Linux working with Wine.

(I don't need any advice or thoughts on the subject of tuning, just the port size)

That is a bit of a loaded question as it requires a box volume to answer.

To tune that woofer to 38.8Hz then you need 1.13 cubic feet of air space and a port that is 2" in diameter and 2.98" long. So basically a 3" long port.

However how you damp the box can alter all of that either way as well.

Oh yeah, and the -3db will be 44Hz with that tuning.

[Folsom]

In this case it is one of Ruebens flatpacks. I guess I should have mentioned that. 

[Danny Richie]

In this case it is one of Ruebens flatpacks. I guess I should have mentioned that. 

If using the .5 cubic foot box tuning it that low it will knock 1db of output away at 100Hz and hit a -3db of 63Hz. And a 2" port would be 9.25" long. So that will also reduce the air space a bit too.

[Folsom]

Thanks Danny.

[Skiman]

You must have had those flat packs from Ruben for quite some time.

[Folsom]

The speakers are already built. I use them often for experimentation.