Ghxamp 1pc 4 Inch 40w Subwoofer Speaker Woofer High Power Long Stroke Bass Home Theater For 2.1 Subwoofer Unit Loudspeakers Diy - Speakers - AliExpress
1pcs 4 Inch 6 Ohm 40w Bass Speaker Woofer Subwoofer Long Stroke Hifi Audio Loudspeaker - Speakers - AliExpress
LAV FSN041.00: Full-range speaker, 40 W, neodymium, 4 inch (10 cm), steel at reichelt elektronik
Logitech Z407 - Speaker system - for PC - 2.1-channel - wireless - Bluetooth - USB - 40 Watt (total) | Dell USA
Current Audio SB65 40 Watt Amplified Soundbar & Wireless Subwoofer Electronics - Zavvi US
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