If there was a fire and your son who is 11 asked if he could pull the fire alarm since you were away from the fire and out of dangers way what would you say? How would you help your son to read the directions break the glass and make sure the handle is pulled correctly? If your son knew how to pull the handle but his hand slipped because of sweat would you let him pull it again or would you go ahead and pull it together.For breaking the glass would you tell your son how to hold the hammer or kick the glass? Sometimes it is hard to break the glass with the hammer so how would you give instructions on how to break the glass?
Look like a pair of 6.5 tubes. If there is only ONE connection for a pair of wires, they are passive. The powered ones usually have a harness coming off of them, or a place to put a harness.
My courthouse does not allow firearms - signs on every door - if someone enters and shots a gun - hurting somebody - am I responsible for it because I do not allow guns. No. Even if the statistics state that I have a better chance of being robbed - I was not negligent - in fact I was attempting to create a safer environment by limiting the guns. You could file an action - I do not think you would get anywhere with it.
Well, I'm not quite sure exactly what a bass cannon is but the name implies some conception of what it might be - a one note boom machine. Given that you need to securely mount one woofer at the end of the tube. I suggest two pieces of heavy (Baltic Birch would be best) plywood at least 3/4 thick with one cutout fitting tightly on the tube and the other with a cutout for the woofer.