ATC actives monitors form an excellent match with Naim NAC’s/Power Supplies and the NAC N 272.
Use S3 from Hi-Cap DR or single Din pre out on NAC N 272 with a single 4 pin din > 2 x XLR cable. Fwiw, over the last fourteen years we’ve used Van Damme Pro Grade Classic XKE 1 pair install cable blue for SINGLE 4 pin din > 2 x XLR’s for connection to power amplifiers, active speakers and powered subwoofers.
If you fancy making your own then the SINGLE 4 pin din > 2 x XLR’s are configured as -
At the Din end:
Pin1: Ch1 left (white core)
Pin2: no connection
Pin3: signal ground ( two blue cores)
Pin4: Ch2 right (white core)
Note: drain wires are not connected at the din end.
At the male XLR end:
Pin 1: drain wire
Pin 2: signal high (white core)
Pin3: signal low (blue core)
Note: link XLR pins 1 and 3 with 20 gauge wire