For the past few months I have been trying to get a new amp. I keep having new issues and my newest issue is watts. I have no clue how many watts i need. I play shows with 50-300 people normally and my 200 watt peavey combo ain't cuttin it any more. How many watts should I need and if you have any amp suggestions that would help that would be great. lookin to spend 500-800 on head?