Amazon.com: 5 CORE 4 inch Speaker Driver 40W 4Ohm Replacement Full Range Audio Stereo Dual Cone Concept for Extra Crisp Sound Made in India (Pair) : Electronics
Polk Audio DB1242SVC 12” 1110 Watt Single 4-Ohm Car Audio Subwoofer Sub+Speaker | Audio Savings
Source 40 Watt RMS deep Bass BT 2.1 CH Computer Home Subwoofer Speaker with Remote on m.alibaba.com
Amazon.com: JINGERL 1 PC Audio Labs 3" 25W 4" 40W 5" 50W subwoofer woofer bass raw Speaker Driver 4 Ohm 8Ohm inch Unit (Bundle : 3 Inch, Color : 8Ohm) : Electronics
40-Watt RMS 4 in. x 6 in. 2 Way Polypropylene Coaxial Car Speakers TERMINATOR46 - The Home Depot
Sweton 8 inch 40 watt Woofer - YouTube
Pyle Plpw8d 8 Inch 800w Peak 4 Layer Dual Voice Coil Car Midrange Woofer Audio Speaker, 4 Ohm W/ 89 Decibel Sensitivity, 40 Oz Magnet, Black : Target
Logitech Z333 2.1 Computer Speaker System with Subwoofer
THUNDER Series 4" x 6" 4Ω Coaxial Speaker Pair | MTX Audio - Serious About Sound®
LAV FSN041.00: Full-range speaker, 40 W, neodymium, 4 inch (10 cm), steel at reichelt elektronik
Ghxamp 1pc 4 Inch 40w Subwoofer Speaker Woofer High Power Long Stroke Bass Home Theater For 2.1 Subwoofer Unit Loudspeakers Diy - Speakers - AliExpress
Massive Audio MX Series 4-Inch 40-Watt-RMS 2-Way Coaxial Speakers in the Mobile Audio department at Lowes.com
Logitech Z407 - Speaker system - for PC - 2.1-channel - wireless - Bluetooth - USB - 40 Watt (total) | Dell USA
DE525-01 Woofer 5.25" 4Ohms 50 Watts (2 Pcs)
1pcs 4 Inch 6 Ohm 40w Bass Speaker Woofer Subwoofer Long Stroke Hifi Audio Loudspeaker - Speakers - AliExpress
Massive Audio MX Series 5.25-Inch 40-Watt-RMS 2-Way Coaxial Speakers in the Mobile Audio department at Lowes.com