"Alternatively you can plug it in out of the box - not touch the app and it will work just as any other phono pre." Actually, that was what I did at first -- but I got a very loud and very nasty sound that made me pick up the needle and turn all the volumes down to near zero. It took me quite a while, going back and forth to find the right levels on everything without blowing out my speakers. And, when I finally did, it sounded worse than any other preamp that I have ever owned. The best way I can describe it, not being an engineer, is that it sounded like there was a lot more emphasis in the mid-bass frequencies that I couldn't get rid of, a lifeless mid-range and muted highs -- all of which I couldn't fix without introducing another problem that I couldn't get rid of. I am not saying that it isn't possible, in the hands of someone with more expertise, to improve this. What I am saying is that, after a day of playing with it, the best I was able to do is get something that was sort of close to what I was hearing from the preamp in the turnable when connected to my Emotiva preamp or using the Emotiva with the built-in preamp. Maybe this would be worth it on a better system or for someone with different tastes (and a different set of ears), but it just wasn't worth it for me.