Combo: HIPPOXL122 Subwoofer with E4 Nano Edge Bass Amplifier
Amazon.com: MTX Terminator TNP212D2 1200 Watt 2 Ohm Dual 12 Subwoofers/Sub Box/Amp Package Bundle with Rockville RHB70 Home Theater Compact Powered Speaker System : Electronics
Amazon.com: Audiopipe APSB-12212 PX Loaded Dual 12" Subs w/Amp and Wire Kit Car Audio Package : Electronics
Sound Quality Coaxial 6.5 Combo With High Powered Amp
2x Infinity 10" High-Performance 1800W Peak Power Car Audio Subwoofers (Bulk Packaging) Bundle Combo with JBL Compact Class D Car Audio Mono Subwoofer Amplifier, Complete Amp Wiring Kit - Road Entertainment
Dual Electronics TBX10A 10-inch, Enclosed Subwoofer with Built-in 300 Watt Amplifier, New - Walmart.com