The NAD DD AP-1 Modular Design Construction (MDC) module is designed to complement your NAD C 390DD Direct Digital stereo integrated amplifier, and gives it the capability to handle three different analog audio inputs. It features one balanced XLR stereo input pair, one single-ended RCA stereo input pair, and a stereo RCA phono input, selectable between moving magnet or moving coil profiles. Internally, the module performs a 24-bit/192 kHz analog-to-digital conversion on the incoming audio source signals to prepare them for the C 390 DD's digital pathways. Adding this module will help your C 390DD to handle analog audio sources and turntable signals with ease, increasing its value and utility as the heart of your entertainment system.
Important note: The installation of MDC modules should be handled by an NAD authorized dealer or an authorized NAD service center. This is not intended to be a user installed accessory.