The NAD PP 4 Digital Phono USB Preamplifier allows users to connect their old record players to modern stereo systems and devices. It features low noise, wide band MM & MC design, separate inputs for MM & MC, and includes VinylStudio Lite software for easy conversion of vinyl records to digital music files. NAD PP 4 Digital Phono USB Preamplifier The NAD PP 4 is a preamplifier that allows users to add phono inputs to modern stereo amplifiers and devices. Perhaps you want to hook your old record player up to your stereo system, but it lacks the proper input. This simple preamp makes it possible to integrate classic technology with modern hardware so you can enjoy the music you love the way it was meant to be heard. Plus, the PP4 comes with an energy efficient power supply, so you don’t have to worry about running up the electrical bill trying to enjoy an album. FEATURES Low noise, wide band MM & MC design Easy conversion of vinyl records to digital music files Includes VinylStudio Lite software (PC & Mac compatible) Separate, switchable inputs for MM & MC Line-In allows connection & digital recording of analogue source Auto Power Down function, turns off when no signal present External 24V DC power supply Gold-plated input & output RCA sockets Dimensions: 135 W x 49 H x 72 D in mm Finish: Black SPECIFICATIONS MC Input impedance (R and C): 100 Ohm + 180pF Gain at 1kHz: 58dB Input Sensitvity: 0.38mV Signal to noise ratio: 78dB Input overload (20hz/1kHz/20kHz): 0.65/6.5/60mV Rated distortion (THD 20ghz-20kHz):