FOR YOUR SUB.........there is no question if you are looking for SOUND QUALITY.....
JL Audio W-1
http://mobile.jlaudio.com/index.php
W1v2: Technologies

W1v2 Subwoofer Drivers
The all-new W1v2?s are poised to establish a new standard for affordable bass excellence thanks to technologies originally developed for our flagship W7 and W6v2 subwoofers.
These include JL Audio?s patented VRC?, Elevated Frame-Cooling and Floating Cone Attach Method? technologies, along with an innovative, insert-molded spider assembly with integral push-terminals and special strain-relief features.
As with JL Audio?s flagship drivers, development was guided by JL Audio?s proprietary DMA modeling system to deliver outstanding dynamic stability and low-distortion operation within their intended power envelope. Optimized for compact enclosures and moderate power levels, and specifically engineered to reduce mounting depth, the W1v2's open up a whole new range of application options.
An injection-molded, metallic-finish polypropylene cone with an embossed metallic JL Audio logo provides a classy new look, while a removable (and customizable) mounting flange trim ring receives grille-mesh inserts directly, without the need for additional grille hardware. (Grille mesh inserts are sold separately.)
Available Models:
10W1v2
12W1v2
13W1v2
DMA Optimized Motor System
Highly optimized motor system delivers linear motor force over a wide range of excursion and power levels to reduce distortion.
more info...
Interlocking Cone & Dust Cap
(Patent Pending)
Enhances mechanical integrity and cone rigidity.
more info...
Elevated Frame-Cooling
(U.S. Patent #6,219,431)
Creates a pathway for high-velocity air to flow directly across the top-plate and onto the voice coil.
more info...
Vented Reinforcement Collar
(U.S. Patent #5,734,734)
Further enhances cooling by forcing air to flow across the top of the voice coil.
more info...
Floating Cone Attach Method (FCAM?)
(U.S. Patent #6,501,844)
Ensures proper surround geometry and moving parts alignment in the assembled speaker.
more info...
Insert Molded Suspension / Coil / Terminal Sub-Assembly
(Patent Pending)
Ensures precise lead wire length, lead wire entry and exit angles and coil to spider perpendicularity.
more info...
Surround Stress-Relief
(Patent Pending)
Promotes smooth, consistent surround behavior at all excursion levels..
more info...
Customizable Trim Ring
(U.S. Patent #D480,709)
This removable ring accepts optional grille mesh inserts directly and can be painted to match the installation theme.
more info...