Brother's Christmas Present... ***PIX***

[Max_Power 10+ year member]

box looks nice.

I spy a 59' ford in the background.....

 

[JBLCAMRY 10+ year member]

box looks nice.
I spy a 59' ford in the background.....

yep, all it needs is some body work and paint. interior is all new

 

[IamDeMan 5,000+ posts]

However, a TL does not need to be tapered.

Thats what I was gonna say. I have seen plenty sonotube T-lines and they don't taper.

 

[IamDeMan 5,000+ posts]

ZOMG, not a T-line here either. Just a box with a really large external port //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

 

[Volenti 10+ year member]

It doesn't really matter if you guys think it isn't a "true" TL, that's how it'll perform, just try and model it as a ported box and see how far you get.

 

[PV Audio 5,000+ posts]

iirc the port opening area of a T-Line enclosure matches the Sd of the woofer. so depending on how big the vent/box starts out at some ports are tapered down to size.

Yep, but not all are.

From what I understand, t-lines can either taper down from the mouth, taper down to the mouth, or be the same throughout.... though I've never designed one myself, this is just from the reading I've done so far

Right. They don't actually have to taper, but the point of the enclosure is to slow the rear wave down significantly so that it goes from completely out of phase to back in phase with the front wave by the time it emerges. Usually you fill it with some form of batting to slow it down even further, although you don't have to if it's long enough. JBL's enclosure here does not appear to be a true TL, but a ported enclosure without a pressure chamber. It should work around the same way, however.

 

[PV Audio 5,000+ posts]

It doesn't really matter if you guys think it isn't a "true" TL, that's how it'll perform, just try and model it as a ported box and see how far you get.

//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif Beangoh

 

[2kchevy06civic 5,000+ posts]

beautiful skills.

 

[JBLCAMRY 10+ year member]

sub came today...snuck it out of the house for a test fit....fits great...cant wait to hear how it sounds

 

[JBLCAMRY 10+ year member]

beautiful skills.

thanks

 

[Rattlebrain 10+ year member]

sub came today...snuck it out of the house for a test fit....fits great...cant wait to hear how it sounds

Keep us posted. Nice looking box! //content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif

 

[JBLCAMRY 10+ year member]

Keep us posted. Nice looking box! //content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif

sure will...thanks

 

[biggen_bd 10+ year member]

Beautiful build A+++

 

[BrianChia 10+ year member]

It looks really nice, is it painted white or is that just the camera?

 

[JBLCAMRY 10+ year member]

It looks really nice, is it painted white or is that just the camera?

just the front and port are white...but the top sides and back will get carpet

Beautiful build A+++

Thanks