3 Inch Protable Subwoofer Speaker 4ohm 30w Desktop Deep Bass Long-stroke Foam Neodymium Speaker For Go+play Micro 1pcs - Speakers - AliExpress
Svs 3000 Micro Subwoofers With Fully Active Dual 8-inch Drivers - Pair : Target
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JBL Professional - JBL CONTROL 24CT MICRO Ceiling Speaker For Use With 70/100V Audio Distribution (MUST BE PURCHASED IN PAIRS) @ PSS Audiovisual Equipment