I am between the FS-15S and the FURUTECH ALPHA-S14, that is a lower gauge of the top of the line bulk cable S25. I have a solid state amp and i have never tried a solid core cable. Furutech"s description is :
FURUTECH ALPHA-S14
Sound characteristics:
Superlative resolution, airy, open treble, fast-paced and
highly cost-effective
FURUTECH FS-15S
Sound characteristics:
Top noise eliminator, quieter backgrounds, striking three-dimensional soundstage, solid punchy bass
I was a little confused at first. With the description above i thought that the Alpha S14 was the solid core and that the FS-15S was the stranded. Both cables are 15 gauge.