Home Slickdeals Monolith M-15 V2 15in THX Certified Ultra 1000 Watt Subwoofer Monoprice $941.64 Slickdeals Monolith M-15 V2 15in THX Certified Ultra 1000 Watt Subwoofer Monoprice $941.64 By ARCOM - 19 October 2022 46 0 SHARE Facebook Twitter Go to the deal page: Monolith M-15 V2 15in THX Certified Ultra 1000 Watt Subwoofer Monoprice $941.64