Never seen a sub like this...

[Juslivin 1]

Link

Why 3 baskets?

Anyone ever seen anything like this?

[Adrian_D 520]

In theory it should stop the coil from rocking since there are 3 spiders spaced very far from each other so that is has 4 points of vertical support. I can remeber seeing these with 2 baskets, never with 3.

[jonbearsmt 919]

and to get your cash!

[Juslivin 1]

Lol. I think i would rather have some nightshades or BTLs.

[rushnrun 14]

***You could pick those up on ebay for like 300 back when they were first out... I've heard one in person... a guy fiberglassed his tirewell and used as a sealed box.. sounded ok but nothing special..

[Tyan 1]

...Dealer price was $2375. Sub weighs close to 70 lbs. measures at a staggering 19 inches tall and is capable of over 4.5 inches Xmax! Woofer surround is 3.5 inches thick it will move some serious air ....

yea right

[Robert_J 0]

Those are built by NCA Labs. If you scroll down on my link you will see the two basket version. NCA Labs also builds the Dayon (Parts Express) Titanic series. PE almost went with a multi-basket sub but scrapped the idea. They sold their one prototype at their big tent sale for about $100. The guy who bought it posted at PE's forum.

Yes, having the spiders spaced that far apart will reduce rocking but not much more than having the spiders spaced 1/2" apart. It adds a LOT of mms since the voice coil former is a foot long.

That's a TC-9 motor structure. I'm pretty sure they have about 3" of depth in the motor. I can always measure the motors that I have sitting here in my home office. Kind of difficult to have 4.5" of xmax when the xmech is 3".

-Robert

[Aaron Clinton 2,372]

Great post Robert.