Any one use Grimm MU1 with Aries Cerat Kassandra ?

Hey folks, I just got a Grimm MU1 and I’m going to use it with my Aries Cerat Kassandra. At first I got no sound from my speakers and after taking the Grimm to the dealer, I realised that I had the Grimm was in 4X over sampling mode (Where all reviews say sounds best). MY Kassandra doesn’t accept 174.4 khz with AES/EBU, big bummer. It would play 88.2khs, 2x over sampling. I use that sampling rate and leave the DAC in native resolution. I can also use the MU1 in no oversampling and re-clock that signal in the DAC. I’m worried that I’m missing out on the best that the MU1 has to offer and considering getting a DAC that accepts 4X oversampling. Does anyone have these two components paired, I’d like to hear your input if you do. Thank you