Explore the world of professional audio equipment with this vintage Nagra IV-S Sales Sheets catalog from 1972. This catalog showcases the features of various Nagra IV-S models, including the Kudelski QFC, QPC, QFMS, QSV, QSV2, ATE, ATM 117, and ATN PAR. Whether you're a collector or a professional in the audio industry, this catalog is a must-have for your reference library. Get a glimpse of the engineering details and design elements that made these Nagra IV-S models coveted by professionals worldwide.