Thank all you guys for your advice and suggestions, it was really helpful to me. I ended up using my MU1 in 88.2 Khz and using the AES/EBU input on my Kassandra with re-clocking. The MU1 doesn’t have a USB output so I couldn’t go with that option. I emailed Aries Cerat and Stavros suggested that, when using the Kassandra AES input with the signal of 44.1 or multiples of it I should use re-clocking. It sounds amazing in my current configuration. Later I’ll try the MU1 with no up sampling and re-clock it in my DAC and compare the sound. I’m most definitely not changing my Aries Cerat Kassandra, it’s the most natural and musical sounding DAC that I ever heard.
Kind regards to all
Ian