I bought one just like this at Big Lots for $9.99 last month.

Hi,

I am auctioning off a Bazooka 10" Tube SubWoofer with enclosure.  The
auction ends on October 16, 2005.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5817458697

The Bazooka® EL series subwoofers are direct descendants of the
original Bazooka® invented in 1984. This 3rd generation of subwoofer
builds on the tradition of the previous Bazooka® subwoofers; a
tradition which has culminated in winning the AudioVideo International
Grand Prix Award 8 years in a row. Above all else, the Bass Tubes®
design is efficient. Typically, a sealed box design using the same size
woofer requires nearly 8 times the power to produce the same SPL as a
Bazooka®!

EL104
EL Series 10 inch 4 ohm Tube Subwoofer
MSRP: $239.00
The "Big Daddy" of the EL Series, this 10 inch, 4 ohm model features
the Patented Bass Tubes.

Specs. EL104
Power Handling 200 Watts (Max)
Impedance single 4 ohm
Sensitivity 107 dB
Frequency Response 39 Hz-1000Hz
Recommended Power 6 - 200 (watts)
Voice Coil Size 1.5" high power/high temp

The enclosure has some wear on it but the subwoofer works perfectly.

Click on the link below for more info and photos.  Thanks.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5817458697