Home Slickdeals Monolith Subwoofer 12″ $699 or $664 w/red card. 15″ $1200 or $1140... Slickdeals Monolith Subwoofer 12″ $699 or $664 w/red card. 15″ $1200 or $1140 w/red +tax, free shipping By ARCOM - 19 March 2021 114 0 SHARE Facebook Twitter Go to the deal page: Monolith Subwoofer 12″ $699 or $664 w/red card. 15″ $1200 or $1140 w/red +tax, free shipping