They are most likely v4. The latest. You can tell by the tweeter.

My side QS8 were 10 and 12 feet away. They were too puny. My rear QS8 were 8 and 11 feet away. They did nothing. I tried all kinds of speakers behind me. Nothing. I gave up.

Then I got the QS10v4 for 5.1. The first review on the QS10 below is mine.

https://www.axiomaudio.com/qs10-surround-sound-speakers

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated