@ticten - If you are looking for Speaker cables I would not recommend high end Cardas, because they have very high capacitance and under certain circumstances the cardas can cause the NAIM to oscilate and burn out components - this little detail can be found on the NAIM forums as @chayro had mentioned and that’s why NAIM recommends low capacitance speaker cables
If you are looking for cables that "Boogie" I would recommend Zavfino.
If you are looking for a great cable on a budget then look at Audio Envy - they boogie also
If you want High end then look at HIJIRI
Search the forum for either of these brands for people’s impression
I always wanted a NAIM and eventually purchased a 5i, But after 10 years the power supply caps had to be replaced ($400 and two weeks being fixed) , which NAIM actually considered a "design feature" - so I said bye bye to it and replaced it with Bryston B135 - a tad more expensive but it came with a 20 year warranty - it also sounded a lot like the NAIM (i.e. "spirited") but the extra power took better control of my speakers. It also had better imaging - an exceptional amp at the price
Good Luck with your quest - Steve