There's an electronics company in town that's been around for two or three decades. Their specialty is security, video, data, etc. and it's here that they have a great reputation. They dabble in pro-sound installation every now and then. Most of their systems are comprised of very good equipment (usually much more than what the room needs), but installed very poorly. Obviously not by anyone that has a firm grasp of what's required of live sound. That being said, on to the story...
We were just recently repairing/upgrading one of the systems that this company installed in a church about 4 years ago. Most of the work was rewiring and adjusting crossovers/eq's, etc. The center cluster was poorly aimed, so we decided to get a lift and see what we could do. We no more than got up there and touched the side of the cabinet when one of the chains came loose and the speaker went swinging; almost knocking me off the lift. The reason?? Swing set chain w/ small, thin s-hooks were used to fly this 100lb cabinet. The s-hooks had stretched out and the chain simply slid off.
Just a warning to anyone out there that's considering flying speakers and thinks that there's nothing to it. STOP!!! Sub out to someone qualified or turn the job over to them completely. Safety is the main concern here. Just imagine what would have happened if that speaker would have fallen from 23 feet and landed on someone at the pulpit. If in doubt, don't do it. There are too many things to go wrong and people could be serously injured or even killed. If you're serious about making a living flying things, get some training and consult w/ building specialists to assure that the roof system can handle the extra weight.
Has anyone else found anything like this?
Adam