"What will be interesting is the little bypass switch in the back that will allow you to hear it with and without the buffer. I'm quite curious myself."
Me to!
But I would suggest, that if one hears a degradation in sonics with the buffer switched into the circuit, the correct conclusion to draw will be that the buffer design (including its power supply, in fact the power supply may be more important than the buffer circuit itself) is not good enough. But, it is a shame to have those switches in the signal path. I have participated in listening tests (and seen measurements, even measurements show distortion of the best relays vs a straight wire) of switches vs a wire, hence my preference to get as many junctions out of the signal path as possible (including jacks, relays, switches, solder joints, etc)
As to the poster who asked about LP playback in my system: I do not do it. I prefer a single source for the aforementioned reasons, and my focus for the past 6 years or so has been to get my digital performance as high as possible. I do appreciate the sound of vinyl, but it is not transparent (this is another discussion, OT, and hence I will not address it here again). That said, I have been collecting LPs over the last few years, and there will be a time when I have a turntable and phonostage in my system again (I will probably switch interconnects though, rather than add a signal degrading preamp with source switching).