It'd be handy to know what the rest of your system is (i.e. CD player, speakers etc...); what music you generally listen to and also what budget you have for interconnects?
I sometimes use my CA 540A v2 with my b&w 601s2 speakers, i use a chord crimson interconnect. (with chord carnival silvercreen speaker cable). The crimson works very well with CA azur amps in my opinion