Amazon.com: PRV AUDIO 8 Inch Midbass Speaker 8MB450-4 v2, 450 Watts Program Power, 2 in Voice Coil, 4 Ohm, 225 Watts RMS Pro Audio Mid Bass Woofer (Single) : Musical Instruments
Amazon.com: Skar Audio EVL-8 D4 8" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Amazon.com: 4) Pyle Pro 8 Inch 360 Watt 8-Ohm Black Driver Mid Range Audio Speakers | PDMR8 : Electronics
Amazon.com: Facmogu 2PCS 8" Full Range Audio Speakers, RMS 50W Peak 120W, 4 Ohm Car Vehicle Audio Full Range Drivers, Wide Range DIY Loudspeaker Woofer Replacement - Red : Everything Else
Amazon.com: Massive Audio MB8 MB Series. 8 Inch 400 Watts, 4 Ohm Pro Audio Midrange/Midbass Speaker for Cars, Stage and DJ Applications. Sold Individually. : Electronics
Amazon.com: BOSS Audio Systems PT1000 2 Channel Car Amplifier - 1000 Watts, Full Range, Class A/B, 2-8 Ohm Stable, Mosfet Power Supply, Bridgeable : Electronics
Amazon.com: PRV AUDIO 8 Inch Midrange Speaker 8MR500-4 Bullet, 500 Watts Program Power, 4 Ohm, 1.5 in Voice Coil Bullet Speakers for Car Audio Door Louspeaker (Single) : Electronics
Amazon.com: 4 ohm speaker
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: Rockford Fosgate PPS4-8 Punch Pro Single 8" 4-Ohm Midrange 125 Watts RMS / 250 Watts Peak : Everything Else
Amazon.com: 4 ohm speaker
Amazon.com: CQRobot Speaker 5 Watt 8 Ohm Compatible with Arduino Motherboard, 2.54mm Dupont Interface. It is Ideal for a Variety of Small Electronic Projects. : Everything Else
Amazon.com: (2) Rockville SPGN128 12" Passive 1200W 8-Ohm DJ PA Speakers+Passive Sub+Stands : Musical Instruments
Amazon.com: Planet Audio AC8D 8 Inch Car Subwoofer - 1200 Watts Maximum Power, Dual 4 Ohm Voice Coil, Sold Individually : Electronics