Korakotta, You are being pulled in all possible directions by conflicting advice from 2 or 3 of the main guys who hang around this forum. I would say there are no "wrong" answers to your questions among the myriad of responses, just opinions. Back up the thread, you mentioned that your interest in balanced ICs emanates from your impression that your "monitors" need a balanced input. Can you amplify on that? In general, balanced ICs (with XLR termination) are only of benefit when the equipment being connected has balanced circuitry inside or an input or output transformer that either converts a balanced input into an SE signal for processing within the circuit or converts the SE signal into balanced at the output, or both. Most speakers ("monitors") do not care.
If the internal circuit is balanced either electrically or via transformer coupling at either end, then it is definitely worthwhile to use balanced ICs.
If the internal circuit is balanced either electrically or via transformer coupling at either end, then it is definitely worthwhile to use balanced ICs.