Iphone 13 Qobuz to McIntosh 2100 maximum lossless

I did a search on the forum. I’m sure this has been discussed before but I can’t seem to find a thread. 
I am trying to iphone 13 stream Qubuz Premium maximum lossless. 

I just read to forget about Bluetooth because it can only stream at 48. 
Apple says I need their lightning to 3.5mm headphone jack to direct wire that maximum streaming rate. As you know, the McIntosh 2100 doesn’t have a 3.5mm headphone in jack. 
i can only see two choices: 1) lightning to 3.5mm then 3.5mm to RCA or,

2) Amazon sells a lightning to RCA cable but I don’t know about what I read as the cable needs a built in DAC. Idk how Apple’s 3.5mm is supposed to be able to do that however does the lAmazon’s listings of lightning to RCA’s accomplish the same thing?

i am so very sorry for what probably has been discussed in the past. Please bear with my ignorance. Thanks.