is adding a subwoofer to its Echo family, bringing the bassline to its Alexa-powered speakers.
Echo Sub review: All about that bass and we're delighted
Echo Plus (2nd Gen) Review: Excellent Sound in a Familiar
Echo Sub review: Add some serious bass to your Echo or
Echo Sub subwoofer Review
Echo Sub - Powerful subwoofer for your Echo - requires
Is the Echo Sub worth buying over other speakers in 2022?
Echo Studio: Is the Premium Alexa Speaker Worth the Cost?
Echo Studio review: smart wireless speaker with 3D audio
Echo Sub is a plug-and-play subwoofer to boost your Echo music
Echo Sub Review: Add Boom To Your Music Experience
Is the Echo Sub worth buying over other speakers in 2022?
Echo Sub - Powerful subwoofer for your Alexa Echo devices
Echo Sub Review: An Affordable Subwoofer for Compatible Echo Devices
Which Echo should I get? A buyer's guide for 's dizzying