In article .com,
"still learning" wrote:


I'm sorry, are you saying you hade it in a sealed enclosure?
I just assumed ported which works well in a 5 cubic foot box, and
should not bottom out with that amount of power. At least that's my
understanding.


Yep sealed. I don't dig bass reflex boxes, but its personal.

If I understand correctly and this was a sealed encousre, then a .5 Qtc
is supposed to be transient perfect.
I'm planning on the 5 cubic ft. enclosure based on Adire's box
recomendations which show 3 box sizes with 5 cu. ft being the largest
and supposedly allows it to play louder before bottoming out and
providing the lowest f3.

The large sealed enclosure gave me the sensitivity. Just not the output
at higher spl levels. But I understand thats asking a bit much from a
single 12" sub in a sealed enclosure.


I would have most likely added a second woofer with compound loading to
increase the effective Xmax.


More drivers is always a good upgrade route. There's no replacement for
displacement IMO.


After I get my tax return, I'll be broaching it to the wife.


hehe This is a common hurdle for just about anybody into audio it seems.
Good luck.


Isn't XBL Adire's technology? I see it being referenced in other
manufacturer's products.


Adire licenses it out to whomever is willing to pay. Ascendant Audio, RE
Audio and Creative Sound Solutions to name a couple that I know of.

A byproduct of an XBL design is that there is more clearance between the
cone and the top plate of the motor structure even at high Xmax.. hence
harder to bottom out.

--
Cyrus

*coughcasaucedoprodigynetcough*