I'm sorry the Mackie didn't pan out too. I'll be honest after pulling out one right after I bought it and have it DOA out of the box it didn't instill confidence. Knock on wooden head, they have been great for me for 3yrs now. You might want to look into the Behringer clone of the 150. My buddy bought one and been gigging constantly with it and it never let him down. They are a little cheaper than the Mackie and seem to sound and function the same. But I also don't put them on the mic stand, they sound a lot better further away than right in your face. I do wish there was a swivel function on the bottom mount so you can angle them better than the set angle they now have. I wonder what the blinking blue light means?