I'm thinking of venturing into the field of being a sound engineer. Around my area there is a demand on sound engineers to do live shows and stuff. I was wondering what are you guys take on powered speakers versus passive speakers. I went to Samash a week ago, because of the sale, and the salesperson was telling me that it was better to go with powered speakers instead of passive. I see the upside to that but I also see the downside to it as well. Also, I've only done one concert where the engineer used powered speakers. Also, what brand would you guys recommend. the salesperson let me hear Samson and JBL powered speakers and subs, and actually the Samson sounded better, but I'm not sold on Samson just yet. Suggestions please???????