6. Holes drilled through the closet wall-not elegant but they work. Four Steps To A New Studio Regardless of your eyesight, the soldering is a four-handed job. One to hold the soldering iron, one to hold the solder, one to hold the plate steady, and one to hold the wire in place with needle-nose pliers. (My wife, being no stranger to my soldering projects, provided two of the four hands, for which I am grateful.) Once soldering is complete, screw the plate into the box and the job is done. The result is well worth the effort. Picture 8 shows the finished boxes in the wall. Step Four-acoustic treatment There is so much written on acoustic treatment it can get immediately overwhelming. Many books and articles go deep into the science and math involved. 7. Soldering cable runs to the XLR jacks in the wall plates.