The Metallica audio team spent a full week of pre-production at the Oakland Arena to perfectly capture the sound of Metallica. This week was the only chance to make adjustments, such as moving a mic between songs. The band's consistent and professional live mic setup was a "beautiful thing," providing many options for the sound mix, with the challenge being simply to choose the best sounds. Once James's guitar sound, Kirk's guitar sound, and the ever-changing bass sound were established, the tea