Bottom Unit in photo, Green tape indicates it is working and for sale! This digital amplifier from Paso is a powerful addition to any home audio system. The amplifier features two inputs, analog controls, and a sleek black design that complements any decor. The Paso Series 4000 is made in Italy and operates on 117V 60Hz AC power or 24-28VDC power, with a power consumption of 330VA AC or 220W DC. It is a reliable choice for music lovers and audiophiles who appreciate the quality of sound that only a high-performance amplifier can provide.