I'm not much into fancy cables, especially for digital signals. I know others may disagree. Interruption/corruption of a digital signal creates very noticeable effects -- stuttering, clicking, dropouts, etc. I've never heard a digital cable only affect tonality. OTOH, with analog signals, there are issues of resistance, inductance and capacitance between the amp and speaker, and issues of RFI for phono and line level signals, so the impact of one cable over another can be more apparent. But, cables are one of the more contentious debates in audio, so there will be no shortage of opinions on the other side. Maybe the thing for you to do is buy some cables from a company with a good return policy and find out for yourself what you hear, or don't.