Right Combination for NAD Warrior

I just bought NAD C525BEE
CD Player & NAD C325BEE
Stereo Integrated Amplifier. I

Also combine with Dali Lektor 2 for the speaker. The sound is great, but I still believe the systems can do more. So I need sugestion or recomendation from the expert, about what interconect & speaker cable are heaven match for my systems.

 Thanks