I would definitely go with Cardas Clear. I own the A3’s and have an authentic Clear unbalanced interconnect between the phono stage and the preamplifier. Before I bought it, I listened to it in my rig. The overall sonics convinced me to drop the cash for the Cardas Clear.
A good buddy just got rid of his A5’s. He had the top Nordost speaker cables and may have had other Nordost in the chain?
The reputation I’ve heard about Nordost is that they’re bright. IMHO, this isn’t a good match with Magico.
I’m also auditioning Cardas Parsec 9 meter XLR cables between the pre and power amps at the moment. I didn’t notice any improvement in sonics from a pro XLR cable I’d been using.