Amazon.com: American Bass 10" Competition Car Subwoofer, 3000 Watt Maximum Power, Bass Surround Speaker, Car Audio Stereo Subwoofer - 10 inch, Dual 4 Ohm Voice Coil : Electronics
Amazon.com: BXW-124 2400 Watt 12" Subwoofer 4+4 Ohm DVC Pro Car Audio Bass : Electronics
Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64 : Electronics
Amazon.com: Pyle PL53BL 5.25" 200 Watt 3 Way 4 Ohm Car Audio Triaxial Speakers (2 Pack) and PL6984BL 6x9" 400 Watt 4-Way Car Audio Speakers (2 Pack) : Electronics
Amazon.com: Pyle 4'' x 6'' Three Way Sound Speaker System - Pro Mid Range Triaxial Loud Audio 240 Watt per Pair w/ 4 Ohm Impedance and 3/4'' Piezo Tweeter for Car Component
Amazon.com: Pyle Car Three Way Speaker System - Pro 4x10 Inch 300 Watt 4 Ohm Mid Tweeter Component Audio Sound Speakers for Car Stereo w/ 45 Oz Magnet, 2.45” Mount Depth Fits
Amazon.com: Pyle Car Mid Bass Speaker System - Pro 5 Inch 200 Watt 4 Ohm Auto Mid-Bass Component Poly Woofer Audio Sound Speakers For Car Stereo w/ 30 Oz Magnet Structure, 2.2”