Cyrus daid:

My Shiva did well until it was replaced with an Atlas12. No more
bottoming in the 88.5L sealed enclosure.


That is a bit small for a Shiva. 140 liters would be more suitable.



Really? In 88.5L, the Qtc is ~.64 IIRC. I found the Shiva sounded very

nice but was able to be bottomed out with ~250 watts. In my quest for
ruggedness, I was not happy.

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.

A quick model sets the 140L enclosure at ~.56 Qtc. Both of these are
without Vdr taken into account, take that how you will. Let me know
how
it sounds, I seriously dig low Q systems.

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.

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


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

I'm looking to try mine in a sonotube, currently it's in a similar
size
cabinet.


My Shiva was handed down to the needy, my buddy with a ****ty sub. I
tried to steer him into the sonotube route for space considerations
and
the small footprint, he didn't like the endcaps idea for some reason..

ah well. He's happy with it in a ~.72 Qtc enclosure, its somewhat
rugged
in this higher Q alignment.

I'm impressed with XBL and won't be going back to normal drivers
without
a fight.


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