Shawarma,
makes it a bit tricky to reply when we don't have the dimensions of your room.
The bigger the room the more powerful amplifier you're going to need.
If you like the sound of them, an ideal speaker for a large room are the Klipsch Horns, 103dB, 8ohms impedance. Purchased used, you'll have lots of money left over to buy good amplification!!!
The nice thing about the used Klipsch Heritage speaker line is this. Years after the initial purchase, and your ears start to critique a short coming in the speaker (they all have them), there are plenty of upgrades for not a ton of money. Check Bob Crites, or Volti Audio for upgrades.
In other words, they maybe lifers.
Enjoy the voyage.