![Monolith Powered Subwoofer - 12 Inch with 500 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater Monolith Powered Subwoofer - 12 Inch with 500 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater](https://m.media-amazon.com/images/I/51X0hu3Gv2L._AC_SX679_.jpg)
Monolith Powered Subwoofer - 12 Inch with 500 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater
![Monoprice Monolith M-12 V2 12in THX Certified Ultra 500 Watt Powered Subwoofer, Massive Output, Low Distortion, Vented HDF Cabinet - Walmart.com Monoprice Monolith M-12 V2 12in THX Certified Ultra 500 Watt Powered Subwoofer, Massive Output, Low Distortion, Vented HDF Cabinet - Walmart.com](https://i5.walmartimages.com/asr/90d08330-444e-4d18-b0ec-907b41e830fb.4f38391037f67fb6d11d14372afeaefd.jpeg?odnHeight=612&odnWidth=612&odnBg=FFFFFF)
Monoprice Monolith M-12 V2 12in THX Certified Ultra 500 Watt Powered Subwoofer, Massive Output, Low Distortion, Vented HDF Cabinet - Walmart.com
![Amazon.com: Monolith Powered Subwoofer - 15 Inch with 1,000 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater Amazon.com: Monolith Powered Subwoofer - 15 Inch with 1,000 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater](https://m.media-amazon.com/images/S/aplus-media/vc/1897c338-0ae7-424c-9ed3-8ac2e73812f2._CR0,18,1183,592_PT0_SX350__.jpg)