The Preamp Power Supply provides a ±12 V output and can source up to 650 mA. This Power Supply features ultra-low output noise which makes it an ideal power supply for preamplifiers, headphone amplifiers, and phono stages. The ultra-low noise ±12 V output is also perfect for the Purifi 1ET400A / Hypex NC500 Input Buffer and Purifi/Hypex a