If you just want a tiny speaker, fuck it, get the Amazon Echo Pop for 18 bucks. Even if you're happy with your audio setup and have a great soundbar for your TV, consider these as a gift.
The relevant quote from our Amazon Fire TV ... JBL Bar 5.1, which provides 300W of total output power, and comes with five full-range drivers and two 1-1/4-inch tweeters for impressive sound.