The Model #CD-101 is specially recorded with the RIAA Frequency Curve at 4mv output from a standard CD player for playback through the Phono input.  This simulates the output level and signal of a Moving Magnet or High-Output Moving Coil phonograph cartridge.  For standard burn-in of a phono section, just put this CD on your CD player, plug the RCA analog cables into the phono input, and play the entire disc as many times as needed to complete the burn-in process.  Playing tracks 1-22 through the phono input will give readings of + 0dB to the Reference Tone at the tape output if the preamp's Reverse RIAA circuit is working properly.