A speaker's wire plugs are generally red (positive) and black (negative). Red wires connect to red plugs, and black wires connect to black plugs. If a speaker's wires contain different colors, the wires should be matched to their plugs by their positive and negative symbols. Full Answer >.
Finding wall studs. Wall studs in modern homes are spaced 16 inches on center -- that is thedistance from the center of one wall stud to the center of the next is 16inches. In older homes, studs may be 24 inches apart, or spaced irregularly.
Receptacle spacing.....is there a standard? Freind of mine is finishing a basement, and I am moving boxes and receptacles off the block walls and going to attach new boxes to his wall studs. Existing is EMT down the wall into a 2 gang metal box with 2 duplex receptacles w/ metal cover. When i pull these off and out....am curious if there is a standard or code spacing for new single duplex receptacles along a common wall. Just curious.....Thanks in advance.