Glad to see you got your MK VI+, such a good amplifier, the first few days are so exciting just trying it out, burning it in a bit and getting use to the sound. Have you found that new sounds can be heard in music you know well? Maybe an extra guitar, or extra drums? I found a lot of missing details that I never knew about were suddenly quiet noticeable when first using the Little Dot MK VI+.
I bought the Little Dot DAC I to use with my MK VI+, it works well, good synergy. I got it before the MK VI+ and I heard extra details when using the DAC I with the MK I+, then after getting the MK VI+ even more details appeared. The DAC I is good value for money and guaranteed to work perfectly with the MK VI+ with very good synergy.
I hope you are enjoying your new MK VI+ as much as I did, and as much as I am continuing to enjoy regularly.