KIN by Totem Sub 8 Powered 8 Inch Subwoofer (2nd Gen.) Bundle with Link Wireless Transmitter Subwoofer Color:White they incorporate a speaker driver

they incorporate a speaker driver on the top (vertical channel) which reflects the sound around the entire listening room

There is no need to separately prepare either one

We are immeasurably excited about these recent additions to our Reference open-body MC lineup

and audio pre-out

Leon’s Terra Tr55AL-MTM features two 5” outdoor aluminum cone woofers for extreme durability and performance

KIN by Totem Sub 8 Powered 8 Inch Subwoofer (2nd Gen.) Bundle with Link Wireless Transmitter Subwoofer Color:White they incorporate a speaker driverTotem KIN Sub 8 (2nd Gen) + LINK Wireless Transmitter Bundle Big Bass, No Wires Bring deep, powerful bass to your home audio system with the Totem KIN Sub 8 (2nd Gen), now bundled with the LINK wireless transmitter for cable free flexibility. This compact 8 inch subwoofer delivers high impact, precision bass with a 200W Class D amp and advanced tuning controls. Paired with the LINK transmitter, you can place your sub anywhere in the roomno wires