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

#039;s Echo speakers aren't exactly audiophile quality, but adding this inexpensive subwoofer certainly improves their performance.

Echo Sub Review: An Affordable Subwoofer for Compatible Echo Devices

Echo Sub Review

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Your Protection Plan will be delivered via e-mail within 24 hours Only compatible with Echo Sub (2018 release) purchased within the last 30 days Your

Echo Sub - Powerful subwoofer for your Echo - requires compatible Echo device

Echo Sub Review