I tried the Nordost quatrro fil, NBS Monitor 0, Synergistics Resolution Ref,Transparent Reference, Acoustic Zen Silver ref and a bunch of others on my EMC 1 over the years and I settled with the Siltech SQ-88B Gold SE. Of course YMMV depending on the rest of your equipments, and another thing I think the EMC 1 sounds better with balanced cables than single ended.
Happy Hunting.
Happy Hunting.