The Ultra Blue Power cable is a star performer and you will find that it can be mixed into your system with the Black power cable as they have been designed to compliment one another. Being particularly beneficial for the front end equipment such as DACs leaving the Black to deal with the drivers such as you integrated amps, power amps and mains conditioners etc.
The Black power cable is something of a star performer across all hifi equipment. Being the grown up big brother of the Blue power cable which was the power cable of the Year 2012 in HiFi World you can imagine that it does everything that the Blue does but just that bit better. Again, like all our cable products it improves with burn in - sometimes as a step change in performance in the case of the Black power cable.