Dynaudio 140s, need advice on a decent cable

I currently have a pair of 140s in the bedroom and looking to upgrade to the S1.4s. They are connected using an Arcam AVR32, DV78 and a PS audio DLiii all running through a PS audio duet.power cables are all base line PS audio and Zu. I have a pair of MIT avr3 cables currently but am a little disapointed about the stereo image. I want to spread out the mix if you know what I mean. Any opinions? I have heard so much about Kimbers 8t.
Had great luck with analysis plus oval 12's on the Focus 140s.
The s1.4 is a more refine dynaudio, bigger mids, but i feel its a darker sounding speaker compared to the 140s.