I have in my collection a Aesthetix I/O Eclipse. It has both balanced and SE inputs and outputs.
‘When I upgraded my phono cable I asked my audio dealer about going with a balanced cable. He informed me that even though the I/O has balanced input and the circuit is a balanced design that the designer of the I/O (Mr Jim White) doesn’t recommend going with a balanced input. His opinion was that a SE works/sounds better. My dealer got into the technicalities of why but the info was above my understanding at that time. I do run a balanced output. So I took his advice and got a SE phono cable.
Both would work. Maybe one day I’ll buy a balanced phono cable and judge for myself. Cables can be expensive to very expensive.
Joe Nies