This has nothing to do with the OP's question. However, let me add that the KRELL Duo 175XD is amazing. I have the KRELL K-300i downstairs and I think it is great for an integrated. However, my new KRELL 175XD (100 hours) | Musetec 005 DAC | CODA 07x preamp is significantly better than the K-300i. This set also cost a lot more than the K-300i.
I have not tried the Musetec 005 DAC on the K-300i. It would likely close the gap with my separates.
The KRELL gear is a little too big and looks rather ugly (cannot have everything), though the sound is fantastic. The iBias is a big winner for me.