They also have the S10's which are a fair bit smaller and are only £69.
These are not active/powered speakers, you will an amp to drive them (y) 🏽
are these standalone speakers or do these need an av?
I'd go for the Polks. Their high frequency and mid range is more clear and bright, vocals are less muddy compared to the Q Acoustics in my opinion. I had the 2020 before so familiar with Q acoustics sound. The Polks have a wide and forward sound stage as well
These or the Q Acoustics 3020? https://petertyson.co.uk/q-acoustics-3020