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.
Wood structural panel sheathing with a thickness not less than 5/16-inches (7.9 mm) for 16-inch (406 mm) stud spacing and not less than 3/8-inch (9.5 mm) for 24-inch (610 mm) stud spacing in accordance with Section 2315 and Table 23-I-P.