Need Help! What amp do I need for my speakers?

[MCM0726]

Again, the previous amp I used put out 250W per channel at 4 ohms. Occasionally, I would have the volume up loud enough to where it would start to clip (I guess that's what you call it). The meter would slightly hit the red, but only when I had it really loud.

So, I'm assuming that the mixer wasn't giving the speakers enough power. Which means, I should look for one that puts out 300W or possibly 600W per channel at 4 ohms.

Am I correct in this assumption?