To get the most from a direct box, your mixing board must have balanced mic and/or line inputs! (Note that some mixers offer both XLR and 1/4 balanced inputs -- check your manual.) Use a direct box if you are experiencing hum, buzz, or radio interference, or if your instrument's cable is longer than 20 feet.
When a transversal (any line that passes through two parallel lines) cuts two parallel lines then the angles that correspond to the similar positions (angles in the matching corners) with respect to either of the parallel lines and lie on the same side of the transversal are called the Corresponding angles.
Definition. 1  In the field of mathematics, corresponding sides usually refers to the sides of two plane figures corresponding to one another. 2  If we have two triangles such that, all their corresponding angles are congruent, then they are called similar triangles. 3  Example 1: Two triangles ABC and DEF are similar to each other.