As you can see from the cabinet design in Step 5, the base enclosure has an internal support to strengthen the external walls and reduce noise. These shelves are usually cut from 3/4” sliced ​​and sliced ​​similar to Swiss cheese to allow air to circulate, divide the drawers and not obstruct the airflow inside.   The internal mount should be anywhere on the speaker audio text to audio converter the cabinet needs strengthening, such as the bracket closest to the speaker and centered on both sides.   The tower speaker free text ...   read more