If you are still using your TV's internal speakers, this is a great upgrade for a great price as long as you don't mind the size of it (quite large in depth). It's a bit of old product but nice speakers are nice speakers. I highly doubt you can get better speakers for the price.
Reviews:
http://www.gadgetreview.com/zvox-audio-v-series-z-base-220-s…
https://au.pcmag.com/speakers/6061/zvox-z-base-220
Bonus round: Since stock level is low on this (2 left as of writing), I can't post this one below under separate thread - price is $379.05 after PUSH5 (RRP is approx. $849). I bought one myself.
Canton DM9 2.1 virtual soundbar
https://www.ebay.com.au/itm/Canton-DM9-2-1-Virtual-Surround-…
Product website Link: https://www.canton.de/en/home-cinema/tv-soundsystem/dm-9
Review:
https://www.trustedreviews.com/reviews/canton-dm-9
https://www.amazon.co.uk/Canton-Flat-Wall-Mounted-Soundbar/d…
If you're not familiar with Canton, it's a very popular, good quality speaker brand from Germany.
What it the world.. is that thing.