Where in St. Petersburg can I see home theater projectors in operation for a future purchase?

Question

Projectors

I ordered a cheap projector in the bedroom for a test with Ali and I really liked watching it on the big screen at home, but it’s one thing to pay 10-15k rubles and if you don’t like it, put it off until better times, and another thing when the projector costs 60k, and with a resolution of 4K in general from 120 tr. , it will already be a shame if something does not like it or for some reason does not fit, so I would like to first look "live" so to speak.