Amazon.com: 2X Gravity WZL8 8″ Midrange Bullet Loud Speaker 1000 Watts Peak Power Handling 4 Ohm Impedance 106 dB Sensitivity Car Audio Speaker Attached High Energy NdFeB Magnet : Electronics
Amazon.com: Facmogu 2PCS 5in Full Range Speaker Drivers, RMS 30W MAX 50W 4 Ohm, HiFi Wide Range Audio Driver Loudspeaker Replacements, DIY Car Vehicle Audio Speakers Bass Woofer Tweeters - Red :
Amazon.com: AudioPipe TXX-BDC4-8 8 Inch 1000 Watt High Performance Powerful 4 Ohm DVC Vehicle Car Sub Audio Subwoofer Speaker System, Black : Electronics
Amazon.com: 18" 8-Ohm Replacement Speaker for JBL,Yamaha,Cerwin,Peavey - 8- Ohms Features Full Range Design - Frequency Response: 40-2,800Hz : Musical Instruments
Amazon.com: PRV AUDIO 8 Inch Midrange Speaker 8MR400-NDY-4, 400 Watts Max Program Power, Neodymium, 4 Ohm, 200 Watts RMS Power, 94 dB, Mid Range Loudspeaker fo Pro Car Audio (Single) : Electronics
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : 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: Cadence XM844Vi 8 Inch 4 Ohm Dual Voice Coil Vocal Midrange Car Speaker with Grill, 250 Watts Max Power, 125 Watts RMS, 1.5 Inch Voice Coil Pro Audio Loudspeaker Xenith Series, Single : Electronics
Amazon.com: CQRobot Speaker 3 Watt 8 Ohm Compatible with Arduino Motherboard, JST-PH2.0 Interface. It is Ideal for a Variety of Small Electronic Projects. : Everything Else
Amazon.com: Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs) EK1725 : Electronics
Amazon.com: Outdoor Trumpet Car Horn Speaker - 5” Pa Horn Speaker w/ 8 Ohms Impedance, 15 Watt Power, Adjustable Bracket, 10' Pre-Wired Cord, 3.5mm Mono - Pa Speaker for Cb Radio Car