Viborg 203 AG XLR+NEI 1001 II
It offers a completely neutral sound in combination with the neotech NEI 1001 II pure silver cable. Fine highs, a weighty midrange and a perfectly clean bass, without harmonic distortions... It cleans the voice of mud, as well as the contrabass instruments as no copper cable can do. Also the signal to my REL subwoofer (powered by the amplifier) ​​is so clean that I can increase the volume without any traces of distortion or vibrations in the listening room, which I could not do with any copper interconnect cable... I recommend it together with any pure silver cable, regardless of whether the cable is round or rectangular wire.
P.S. I can't understand those who use copper connectors together with pure silver cables.

Very best XLR connector
I have tried a lot of XLR connectors but this is the very best.
Combined with the Neotech nemoi 1220 rectangular silver cable it is a marvellous combination. In our friend audio group we compared it with timber cable with Furutech connectors (1250,= euro) but the Neotech with Viborg pure silver contacts was the absolute winner