Amazon's Echo Sub adds some much-needed bass to its smart speakers

Low-end meets high-tech.

The Echo is a fine enough smart speaker, but what it's lacking is any sort of oomph in terms of sound quality. That's why Amazon will release the Echo Sub this October. The diminutive bass-maker features 100W of power, a 6-inch downward firing woofer and will work when paired with either a lone Echo or a pair, for a true 2.1 stereo setup. The stereo pairing feature is brand new, as well. Prior, you could only group separate Echo devices together for multi-room listening. More than that, Amazon is opening up its multi-room API to third parties.

How much is that doggy in the window? $129.99, with pre-orders starting today. So, for between $230 and $330 you can have a simple wireless stereo setup. Of course, if you're after sound quality, you should skip the Echo Dots and stick with the Echo Plus, which has been marked down by $50 as of this writing.

There's an absolute trade-off here between sound quality and convenience. Sure, the setup on a traditional stereo system might take a little longer, but you only have to do that once anyhow. Amazon crowed about how good the Echo Dot and Echo Plus sound from the stage, multiple times. Neither of those -- the Dot in particular -- sound amazing, and the company wouldn't have released the Sub if they did. A subwoofer will add bass to music, of course, but it won't fix the Echo line's weak midrange and highs. Those are other problems altogether.

If you'd want to skip the Echo speakers wholesale and grab an Echo Input and a pair of powered bookshelf speakers, it'd be a much better value and you won't be locked into Amazon's streaming ecosystem exclusively, either. Regardless, no matter what Echo setup you choose, it'll still cost less than Google's $400 Home Max speaker.

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