Thirty feet underneath the Capitol Tower lies Capitol Studios’ eight Echo Chambers. These chambers have been used to create some of the most memorable recordings in modern history. Each chamber has a unique ‘personality’ as each has a unique design, speaker selection, and microphone placement. The trapezoidal chambers were built from reinforced concrete and designed with sloping ceilings to avoid any parallel surfaces. Approximately 2000 cubic feet, the 8 chambers can provide a maximum reverberation period of 5 seconds, with average signal level the delay is approximately 3 to 3.5 seconds. The chambers deliver a relatively smooth sound decay curve (approximately logarithmic with time), and make a completely natural room tone.