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.
24'stud wall they want to place the studs 24 apart on center how many studs will they need? If there are no windows, doors or partitions in the wall and no corner walls on the end you will need 13 studs, 24 feet of bottom plate and 48 feet of top plate.