I am contemplating the addition of MSB Reference to my system which is presently Lumin U1 to Diablo 300 (w/dac option) to Revel Salon 2. If I did so upgrade I would bypass the preamp and dac in the Gryphon and just use the amp section of the integrated. Would anyone expect that to result in a significant performance upgrade? I have heard the Reference dac so I am familiar with its sound, just not in my system. I love the sound I am getting now, but upgradeitis being what it is, I had to ask. I have heard Select and Premier, and to me, the Ref is a significant jump from Premier. I would say its probably the sweet spot in MSB line from what I have heard.