Echo Sub: a $129.99 subwoofer that pairs with Echo speakers

is making a more serious foray into the home audio space with a subwoofer that can be paired to two Echo speakers for a 2.1 stereo system. Should Sonos be worried?

Echo Sub review: Echo can finally go deep - CNET

Echo Sub review: Add some serious bass to your Echo or Echo Plus speakers

Echo Sub Review: An Affordable Subwoofer for Compatible Echo Devices

Echo Sub review: Add some serious bass to your Echo or Echo Plus speakers

​Echo Sub review

Pump Up the Jam: How to Connect Your Echo to an External Speaker

Echo Sub review: Getting serious about sound

Unveils New Alexa-Powered Echo Speakers, Subwoofer, Amplifiers, Microwave, Wall Clock, and More

Echo Sub review

Echo Sub Review: Alexa, Goes Boom!

The best Alexa speakers in 2024

Echo Sub review: Exactly what you need for Alexa-powered music

Official: Echo Studio with Echo Sub