Firstly, thank you to anyone who responds and helps out. My wife is interested in getting a home setup for Karaoke and it seems to be a pretty deep learning curve with lots of options.

We have a decent budget and some IT knowledge so can hopefully find something that suits with a bit of guidance.

She found the karafun app and is very impressed with it. Now we need to figure out the hardware.

Must haves Low latency/lag - wife won't be happy if there's delay between tv/mic/speakers. I'm thinking cabled for everything but open to options. 4 X mic inputs Speaker with good deep bass output Lighting in sync with sound

Nice to haves Speaker that can be added into our existing google home setup

I'm thinking we will need a good mixer, then cabling for everything.

Hoping to keep it under $1500 AUD. That price is my wife's cap, I'm assuming this would come closer to $2k.