The special carbon conductor coaxial First Ultimate cable is a threefold heavier shielded version of The First. The First Ultimate is designed for high quality (unbalanced/asymetric) line level audio and SPDIF digital audio connections. It gives extended low level information, a total lack of any harshness and a clean sound reproduction.
The First Ultimate is a favourite of What Hi-Fi for high-end systems. In their 2003 Ultimate Guide all Hi-Fi system over £4000 were tested using the First Ultimate.
What Hi-Fi 5 stars - First Ultimate "Stunning- if your system is good enough we can't recommend these First Ultimate interconnects too highly"
Note: The First Ultimate interconnect is NOT suitable for connecting a pre-amp to a power amp. The optimum cable for this is The Second.