Amazon.com: CQRobot Speaker 5 Watt 8 Ohm Compatible with Arduino Motherboard, JST-PH2.0 Interface. It is Ideal for a Variety of Small Electronic Projects. : Everything Else
AIYIMA 2Pcs 2.5 Inch Audio Speaker 66MM 4 Ohm 5W Full Range Sound Speaker Rubber Cone Altavoz LoudSpeaker Home Theater
SONY 4x4 4ohm 5 watt speakers with 100ohm 3 volt tweeter | eBay
Atlas Sound 8"Dual Cone In-Ceiling Speaker with 5-Watt/70 C5AT70
Amazon.com: Full Range Speaker, 5W 4Ω Car Speakers, high Sensitivity Audio Speaker, Suitable for Multimedia Sound Box : Electronics
Supersonic 10.6-in 5-Watt Smart Bluetooth Compatibility Indoor/Outdoor Portable Speaker in the Speakers department at Lowes.com