Amazon.com: MIYAKO USA (TS-416) 4" Professional Grade Replacement for Speaker 50 watts Power at 4 ohms 10oz Magnet Round Speaker for Repairs Black (1 Pair) : 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 : Everything Else
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Amazon.com: CQRobot Speaker 3 Watt 4 Ohm Compatible with Arduino Motherboard, 2.54mm Dupont 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: 6.5" Three-Way Sound Speaker System - 180 W RMS/360W Power Handling w/ 4 Ohm Impedance and 3/4'' Piezo Tweeter for Car Component Stereo, Round Shaped Pro Full Range Triaxial Loud Audio -
Amazon.com: MIYAKO USA (TS-416) 4" Professional Grade Replacement for Speaker 50 watts Power at 4 ohms 10oz Magnet Round Speaker for Repairs Black (1 Pair) : Electronics
Amazon.com: Pack of 2 Full Range Bookshelf Speaker, 3 Inch 8 Ohm Anti-Magnetic HiFi Tweeter Wooden Enclosure Home Audio Woofer Multimedia Speakers (8Ω) : Electronics
Amazon.com: KICKER 40PSM34 4 Ohm Mini Weatherproof Speaker System for Motorcycle & ATV, 50 Watt, Durable Chrome Encasing, Black : Electronics
Amazon.com: Harmony HA-P12LS8 Replacement 12" Sub Pro PA 800W Subwoofer/ Speaker 8 Ohm Woofer - 90oz Magnet : Musical Instruments
Amazon.com: Celestion TF 0615MR 50 Watt Raw Frame Speaker, 8 Ohm, 6 inch : Musical Instruments