So am I not realizing all the potential uses for this? I was thinking it was just a phono pre-amp. If it boosts a phono signal up to line-level, won't it over do (boost too much) a CD or Tapes signal which is already at line-level? Or is that what the volume control is for? And so having all those extra inputs adds some "color" or somehow enhances the sound of those other devices. Reason I'm asking is I'm searching for a new phono preamp. Looking at the Pro-ject Tube Box S and Tube Box DS2 - both of which are more money than this one. I'm using a Technics SA-700 integrated receiver.