6.5 Inch 100w Wooden Active Heavy Subwoofer,Meticulous Internal Structure With Acoustic Technology,Matched To Active Speaker - Buy 100w Professional Audio Subwoofers,6.5 Inch Active Heavy Subwoofers,Wooden Subwoofer Product on Alibaba.com
Amazon.com: GOgroove Bluetooth 2.1 Sound Bar Home Theater Speaker with Internal Subwoofer & Wall Mounting Kit - Compatible with Samsung, VIZIO, Sony and More HD, 4K, & Smart TVs : Electronics
Asus ROG G750J Series 17.3" Genuine Laptop Internal Subwoofer Speaker | eBay