Pro-Ject Audio Optical Box E Phono PreamplifierAnyone who wants to use his record player together with devices with digital inputs only, such as home cinema receivers, sound bars or all in one systems will love this little box. The Optical Box E Phono takes many needs into account and offers a digital optical signal output plus a standard analogue output that will work simultaneously. Therefore it can be used as the perfect signal splitter 1>2 to play the same signal on 2 systems at the same time.