The ART USB Phono Plus is a flexible phono (turntable) preamp with a USB interface and digital connections. The USB Phono Plus is an ideal solution for quality recordings while digitizing old vinyl collections, connecting a turntable to a line input, or as a simple audio interface for your Windows or Mac OS computer. There are optical digital inputs and outputs, S/PDIF input and analog preamp outputs. Also featured is a headphone output, gain control and monitor level adjustment controls. A line / phono input switch allows for line or turntable signals to pass, and a low-cut filter switch eliminates hum, rumble and other low frequency artifacts associated with vinyl recordings. USB connectivity to desktop and laptop computers RIAA accurate low noise phono preamp Up to 45dB of clean gain Latency free monitoring S/PDIF or optical to USB and USB to optical interfaces included Preamp line out allows use as a stand-alone phono preamp Includes recording & production software Compact, stackable all aluminum chassis Flexible power from USB or external power supply (not included)