Amazon.com: TORO TECH – RX2, 65 Watts x 2 RMS @ 4 Ohm / 2 Channel Car Amplifier, Sound Quality Class A/B Design, Built-in Auto Sensing Turn-On, Clip LED, Wide Range for
Amazon.com: Car Three-Way Speaker System - Pro 4 x 6 Inch 180W 4 Ohm Mid Tweeter Component Audio Sound Speakers For Car Stereo w/ 30 Oz Magnet Structure, 2” Mount Depth Fits
Amazon.com: Crunch Powerzone 2 X 375 @ 4 Ohms 2 X 750 @ 2 Ohms 1 X 1500 Watts @ 4 Ohms Bridged 0in. x 0in. x 0in. : Electronics
Amazon.com: 2X SoundXtreme Premium Elite ST-410 10 Inch Car Audio Subwoofer 3000 Watts Max Power Dual 4 Ohm Voice Coil High Power Bass Surround Sound 10" Sub Speaker System : Electronics
Amazon.com: 2 x 12 Subwoofer 1200W 2" 4 Ohm DVC Pro Car Audio American Bass XO-1244 : Electronics
Amazon.com: 2X Gravity 8 Inch 1000 Watt Car Audio Subwoofer w/ 4 Ohm DVC Power 8' Sub Pair - Feature Dual Voice Coil, Thick Magnet, Design for Car, ATV, Van, High Performance
Amazon.com: Rockford Fosgate Pair of 2 Punch P1 15" 1000W 4-Ohm SVC Subwoofers | 2 x P1S4-15 : Electronics
Amazon.com: Marine Audio TX2-120 Watts x 2 @ 4 Ohm RMS Marine Compact Car Amplifier 2 Channel Built-in Car Bluetooth (Bluetooth Dongle is Optional Sold Separately) : Electronics
Amazon.com: Car Two Way Speaker System - Pro 6.5 Inch 240 Watt 4 Ohm Mid Tweeter Component Audio Sound Speakers For Car Stereo w/ 30 Oz Magnet Structure, 2.25” Mount Depth Fits
Amazon.com: 2 x 15 Subwoofer 2000W Single 4 Ohm Bass Pro Car Audio American Bass DX-15 : Electronics
Amazon.com: 2 x Polk Audio MM Series 12" Single 4-ohm Car Audio Sub woofer SVC 1,260 Watts : Electronics
Amazon.com: Alpine X-W10D4 Car Audio Type X Dual 4 Ohm 1800 Watt 10" Subwoofers with Sub Install Kit Package : Electronics