Used between a CD player and a preamplifier. Equipped with the renowned Altec 15095 transformer. 600Ω/150Ω impedance selectable, enabling step-up for cartridges like the DL102. Allows you to extract the superb Altec sound from your CD player. This product was made by a professional, not an amateur, so high-quality components are used in addition to the transformer. *Fully functional.*