Cable Upgrades DCS Verdi,Purcell, Elgar, Verona


What is current thinking on benefits of upgrading cables on DCS classic stack? I'm thinking firewire and AES/EBU. Any particular cable recommendations?

I am currently upgrading clock to reference through GPS receiver so might as well look at other upgrades at the same time.
128x128custodian
Update on this topic. Now using Aurender front end into DCS Scarlatti 3 box stack. Eventually settled on Siltech Signature digital and analogue cables very happy with the sound.
so no need for firewire with your front end? did you compare your siltechs to others...just curious...thanks
Oelbach,Audioquest and revelation have also upgrade firewire cables for dCS.Some have expierence with them?
Whats the differents with the originals?
Regards from Belgium