JBL ES250PBK 12-Inch Subwoofer (Black): http://www.amazon.com/gp/product/B00166ZFSO?smid=ATVPDKIKX0DER
Product Specifications
Brand Name: JBL
Color Name: Black
Item Display Height: 1.64 inches
Driver Configuration: 1 x 12" PolyPlas woofer
Frequency Response Curve: 50Hz-150Hz
Speaker Driver Material Type: Paper
Technical Details
A JBL computer-optimized bass-reflex port provides deeper bass and less
turbulence
Use of premium components gives you less distortion
These speakers are designed to look good anywhere with a style that
equals their substance
The JBL ES Series uses cellulose-fiber cones reinforced with a ploymer
coating for uniform pistonic motion
Matches other speakers in the JBL ES line
