Break In To New SoundPhono cartridges usually need a break-in period to reach their full sonic potential. This can take anywhere from 40 to 100 hours, depending upon the manufacturer, design and construction of the phono cartridge. The Clearaudio break-in LP plays an endless groove cut with pink noise to significantly reduce the length of the break-in period. A total of twelve continuous pink noise tracks are provided, 6 per side, at various positions on the record. In addition to the continuous cartridge break-in tracks, several other tracks are included to aid in the properly setting up the cartridge, arm and turntable, as well as other important aspects of a hifi system. The record is pressed on 180g vinyl.