Amazon.com: KICKER 45KMF104 10" Weather-Proof Subwoofer for Freeair Applications 4 Ohm 45KMG10W 10" LED Grille (White) : Electronics
Amazon.com: PRV AUDIO 6MB200 v2 6.5 Inch Speakers Midbass Woofer 8 Ohm, 100 Watts RMS, 200 Watts Program Power, 93.5 dB 1.5 in Voice Coil for Small Custom Enclosures Pro Car Audio System (Single) : Musical Instruments
Amazon.com: BOSS Audio Systems CXX8 8 Inch Car Subwoofer - 600 Watts Maximum Power, Single 4 Ohm Voice Coil, Easy Mounting, Sold Individually : Electronics
Amazon.com: DS18 SLC-8S Subwoofer in Black - 8-Inch Speaker, 400W Max Power, 200W RMS Power, Aluminum 4 Layer Voice Coil, Black Steel Frame, SVC, 4 Ohm Impedance, Ferrite Magnet (1 Speaker) (SLC8S) : Electronics
Amazon.com: Facmogu 2PCS 8in Full Range Audio Speakers, RMS 50W Peak 120W, 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement - Red : Electronics
Amazon.com: Visaton R10S 4" Full Range Speaker 8 Ohm : Electronics
Amazon.com: 5 CORE 15 inch Subwoofer Replacement PRO DJ Speaker Sub Woofer Loudspeaker Aluminum Body 400W RMS (2400W Peak Power) Voice Coil 4", 100 Oz Magnet, 8ohm FR 15200 01 : 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: JBL Professional Control 25-1L Compact 8-Ohm Indoor/Outdoor Background/Foreground Speaker, Black, Sold as Pair : Everything Else