The disc contains consisting of complex, non-musical signals generated from white noise modulators and filters. These signals are designed to exercise different parts of the audio chain:

If you are using a version of the disc, ensure it was ripped as a 1:1 lossless copy to maintain the integrity of the technical signals. Compressed formats like MP3 may strip away the specific frequencies required for the burn-in process. Magic CD - JMR Electroacoustique - jm-reynaud.com

To hear what Jean Marie Reynaud intended, your chain must be .

: A full-spectrum pink noise signal (20 Hz–20 kHz) used for breaking in modulation cables and amplifiers. Safety and Format

: High-mid signal (centered at 1500 Hz) specifically for crossover components. Tracks 9–10