Home Columbus Day Amazon Echo Sub 100W 6″ Down-Firing Subwoofer (Pre-Order) $129.99 Columbus Day Amazon Echo Sub 100W 6″ Down-Firing Subwoofer (Pre-Order) $129.99 By ARCOM - 11 October 2018 136 0 SHARE Facebook Twitter Go to the deal page: Amazon Echo Sub 100W 6″ Down-Firing Subwoofer (Pre-Order) $129.99