Home Smart Home Amazon Echo Sub 100W 6″ Down-Firing Subwoofer (Pre-Order) $129.99 Smart Home Amazon Echo Sub 100W 6″ Down-Firing Subwoofer (Pre-Order) $129.99 By ARCOM - 22 September 2018 141 0 SHARE Facebook Twitter Go to the deal page: Amazon Echo Sub 100W 6″ Down-Firing Subwoofer (Pre-Order) $129.99