I am now the proud owner of a PS Audio GCPH. The Pro-Ject Tube Box is pretending to not be afraid. At the moment, I'm pretty impressed. It seems like I've read the GCPH is supposed to have a warm sound...don't recalled for sure...but given that my primary phono preamp has been the Tube Box, I'm not surprised the GCPH sounds a bit hard to me...but more thoughts to come after I tinker with the multitude of settings.