Look you can drive these speakers with Just about anything, you could go with a lower powered tube amp (50-75w) or you could go with a really powerful 300 watt per channel solid state beast, its about how much you want them to punch and kick! Of course this will require quality electronics with very clean power delivery into a 4ohm load. Most receivers fall short of providing the clean power output at higher volumes that these speakers are meant for. Buy a integrated amp with good power and excellent SQ!
Matt M