My Heresy 4s work well in my 14x18 room. I like that they have a low profile, as this is my living room too. My amps have been anywhere for 3 watt to 100 watt. You'll want higher than 3 watts if you rock out. I have a REL sub, but don't always use it. That depends on what you like. I got a pair or Heresys from Hifi Heaven for $2399.98 shipped. That was 4 years ago. I feel that they get me very close to a Cornwall sound. They will grow with you as you get better electronics. I have a 100 watt Rogue Audio tube amp now that has great synergy with the Heresys. All the best