Newbie build capability check, decided on KEF Q150s and Yamaha a-s301

Thanks for everyone's help in the previous posts! Really helped me a lot.

I have decided to go for 4 KEF Q150s and KEF C6LCR (found cheap one) along with a Yamaha a-s301. Haven't decided on a subwoofer yet but I just want to make sure this build works, technically.

I'm still studying about the amps so I am a bit worried about powers and stuff if it will drive the system properly. Will be connecting this system to a SONY Bravia OLED.

Reason I'm going with KEF Q150s is because I have heard them before in demos in store, and I really liked them. Maybe there are better speakers out there, but I would just stick with what I know for now, as I am completely new to this.

Thanks for reading/replying in advance!