If you want cheap speakers with wildly exaggerated specs in a hurry for a kids party, then Electromarket is a fine company to buy from, but it's a different story when returning faulty goods. Maybe I just got an employee on the day he was about to resign, but telling a customer they've 'over-signalled the speaker', and that ' a volume knob is like a sluice gate...if it's not open all the way something will burst' reveals something of the contempt this company has for its customers. It's almost like they can't believe you'd be so stupid to buy from them! They did eventually replace the item. I can't use them again. Just buy Mackie or JBL, and steer clear.