Currently using a DIY bi-wire configuration of Furutech's FS-Alpha Speaker Cable, which uses finely stranded Alpha-PCOCC conductors. The Alpha treatment includes
deep cryo & demagnetizing
processes. I believe their highly regarded Speaker Reference III cables are simply the FS-Alpha cable with a techflex jacket and the addition of their Formula GC-303 antimagnetic EMI-absorbant modules. You can decide whether you want to pay the premium for the modules, which are not available for DIY.
I find the FS-Alpha cables to be clear and even-handed across the frequency spectrum. They are not the most dynamic cables I have heard (which are typically solid core wire cables), but they have excellent tonality and IMO serve the music well by providing good body and depth, particularly in the midrange. I suggest reading the reviews such as the review of their builk cables at Dagogo but particularly Srajan's review of the Reference line, which IMO provides a good description of how the upper end bulk cables sound.
http://www.6moons.com/audioreviews/furutech4/cables.html
Some like the FS-15S bulk speaker cable, which is OFC and not OCC but which uses solid core conductors and very good foamed PE insulation.
I find the FS-Alpha cables to be clear and even-handed across the frequency spectrum. They are not the most dynamic cables I have heard (which are typically solid core wire cables), but they have excellent tonality and IMO serve the music well by providing good body and depth, particularly in the midrange. I suggest reading the reviews such as the review of their builk cables at Dagogo but particularly Srajan's review of the Reference line, which IMO provides a good description of how the upper end bulk cables sound.
http://www.6moons.com/audioreviews/furutech4/cables.html
Some like the FS-15S bulk speaker cable, which is OFC and not OCC but which uses solid core conductors and very good foamed PE insulation.