I will say that even at low volumes, this subwoofer magically adds an exceptional range of sound to the Bose 900 Soundbar. I'm hearing deep rumbles, as well as other subtle low notes that make the the sound range sound like a complete experience. It's hard to explain, but imagine someone with a deep voice talking while distant thunder echos. The subwoofer can simultaneously produce all those low notes without mixing them together. It somehow keeps the sounds clean.

This is an incredible addition to our new 8K TV and Bose 700 sound bar. Provides full bass output that enhances that thunder feeling when listening to those favourite bass-ey songs, or watching those action movies where you can actually hear and feel the ground moving. Whether at low or high volumes, this Bose Sub-Woofer is the orchestral bomb.

Seriously a GAME CHANGER! Windows vibrate. Pictures fall. Neighbors get upset... It's a MUST if you have a Bose Soundbar 700. It's worth the money. That's all.

Incredible bass...if you have the soundbar 700. Now keep in mind it did work with my old soundtouch 300 soundbar but even at full volume with the old remote it was not that impressive. Also, you cannot control the bass to its fullest degree without the Bose music app, which doesn't work with soundtouch 300.