Cambridge - Azur 851C CD Player (Silver) No matter the source of your digital music, twin DACs in dual differential mode and 2nd generation Adaptive Time Filtering make the music sound as the original artist intended  extraordinary Three selectable filters, linear, minimum and steep, this allows you to choose the type of sound that suits your ideal listening preferences A complete digital hub which can connect to almost anything digital Optical and co-axial digital in and outputs plus an asynchronous USB audio input Can connect up TVs, streamers, PCs, MACs and more, and everything will be upsampled to amazing hi-res quality