![Amazon.com: Monolith M-215 THX Ultra Certified Powered Subwoofer - Dual 15in, 2000-Watt Amplifier, Massive Output, Low Distortion, for Home Theater Systems, Black (138543) : Electronics Amazon.com: Monolith M-215 THX Ultra Certified Powered Subwoofer - Dual 15in, 2000-Watt Amplifier, Massive Output, Low Distortion, for Home Theater Systems, Black (138543) : Electronics](https://m.media-amazon.com/images/I/61eyRBXlR4L._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Monolith M-215 THX Ultra Certified Powered Subwoofer - Dual 15in, 2000-Watt Amplifier, Massive Output, Low Distortion, for Home Theater Systems, Black (138543) : Electronics
![Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com](https://downloads.monoprice.com/files/images/38543_01.jpg)
Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com
![Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com](https://wac.edgecastcdn.net/001A39/prod/media/Fbh1j7KwMmRh9Cvsite/FFEDDD95C509999477C87C9DE848D347.app1_1648856033227_PZ320.jpeg)
Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com
![Amazon.com: Monolith Powered Subwoofer - 15 Inch with 1,000 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater : Electronics Amazon.com: Monolith Powered Subwoofer - 15 Inch with 1,000 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater : Electronics](https://m.media-amazon.com/images/S/aplus-media/vc/f5569719-5079-431b-b4c1-4af9e763b038._CR0,37,613,818_PT0_SX300__.jpg)
Amazon.com: Monolith Powered Subwoofer - 15 Inch with 1,000 Watt Amplifier, THX Certified, Ideal for Professional Studio and Home Theater : Electronics
![Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com](https://downloads.monoprice.com/files/images/38543_08.jpg)
Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com
![Amazon.com: Monolith M-212 Dual 12in THX Certified Ultra 1000 Watt Subwoofer - Bass Output, Low Distortion, for Home Theater System : Electronics Amazon.com: Monolith M-212 Dual 12in THX Certified Ultra 1000 Watt Subwoofer - Bass Output, Low Distortion, for Home Theater System : Electronics](https://m.media-amazon.com/images/I/41sEytpOFRL._AC_UF350,350_QL80_.jpg)
Amazon.com: Monolith M-212 Dual 12in THX Certified Ultra 1000 Watt Subwoofer - Bass Output, Low Distortion, for Home Theater System : Electronics
![Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com](https://images.monoprice.com/productlargeimages/385432.jpg)
Monolith by Monoprice M-215 Dual 15in THX Certified Ultra 2000-Watt Powered Subwoofer - Monoprice.com
![Monolith by Monoprice M-215 DUAL 15 inch THX Subwoofer & Monoprice HTP-1 16 Channel Processor |CEDIA - YouTube Monolith by Monoprice M-215 DUAL 15 inch THX Subwoofer & Monoprice HTP-1 16 Channel Processor |CEDIA - YouTube](https://i.ytimg.com/vi/E28yHrQdDWs/maxresdefault.jpg)
Monolith by Monoprice M-215 DUAL 15 inch THX Subwoofer & Monoprice HTP-1 16 Channel Processor |CEDIA - YouTube
![Amazon.com: Monolith M-15 V2 15" THX Certified Ultra 1000 Watt Subwoofer Amplifier, Low Distortion, High Power Output, Vented HDF Cabinet, Black : Electronics Amazon.com: Monolith M-15 V2 15" THX Certified Ultra 1000 Watt Subwoofer Amplifier, Low Distortion, High Power Output, Vented HDF Cabinet, Black : Electronics](https://m.media-amazon.com/images/I/51pRH3xroBL.jpg)
Amazon.com: Monolith M-15 V2 15" THX Certified Ultra 1000 Watt Subwoofer Amplifier, Low Distortion, High Power Output, Vented HDF Cabinet, Black : Electronics
![Monoprice Monolith M-212 Dual 12in THX Certified Ultra 1000 Watt Subwoofer - Bass Output, Low Distortion, For Home Theater System Audio / Video Accessories - Newegg.com Monoprice Monolith M-212 Dual 12in THX Certified Ultra 1000 Watt Subwoofer - Bass Output, Low Distortion, For Home Theater System Audio / Video Accessories - Newegg.com](https://c1.neweggimages.com/productimage/nb640/A8SVD23020301EFTHA9.jpg)
Monoprice Monolith M-212 Dual 12in THX Certified Ultra 1000 Watt Subwoofer - Bass Output, Low Distortion, For Home Theater System Audio / Video Accessories - Newegg.com
![Amazon.com: Monolith M-12 V2 12in THX Certified Ultra 500 Watt Powered Subwoofer, Massive Output, Low Distortion, Vented HDF Cabinet : Electronics Amazon.com: Monolith M-12 V2 12in THX Certified Ultra 500 Watt Powered Subwoofer, Massive Output, Low Distortion, Vented HDF Cabinet : Electronics](https://m.media-amazon.com/images/I/51BhlLAtWKL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Monolith M-12 V2 12in THX Certified Ultra 500 Watt Powered Subwoofer, Massive Output, Low Distortion, Vented HDF Cabinet : Electronics
![Amazon.com: Monolith M-10 V2 10in THX Certified Select 500 Watt Powered Subwoofer - Piano Black Finish | Massive Output, Low Distortion, for Studio and Home Theater Systems : Electronics Amazon.com: Monolith M-10 V2 10in THX Certified Select 500 Watt Powered Subwoofer - Piano Black Finish | Massive Output, Low Distortion, for Studio and Home Theater Systems : Electronics](https://m.media-amazon.com/images/I/81fP82BD6yL._AC_UF1000,1000_QL80_.jpg)