Home Home Theater & TV Accessories Monoprice Monolith M12-S 12" THX Certified Select Sealed 500W Subwoofer $488.58 Home Theater & TV Accessories Monoprice Monolith M12-S 12" THX Certified Select Sealed 500W Subwoofer $488.58 By ARCOM - 11 March 2020 119 0 SHARE Facebook Twitter Go to the deal page: Monoprice Monolith M12-S 12" THX Certified Select Sealed 500W Subwoofer $488.58