Percentage of cable cost

the proportion spent on cable should be related to affect cables have on the sound of your stereo system.

I have never gone by the "percentage" rule with cables. I think that an expensive cable is worth it when it's the cheapest way to improve your system. IMO, a box or speaker upgrade should sonically exceed the sonic contribution of a cable upgrade. But when your system becomes expensive to the point where better cables offer a significant sonic upgrade for much less then a black box upgrade, cables are the way to go. Cables are the icing on the cake, but you need to have the cake first.

I feel cables can make a significant difference, and yes, this has included double blind tests in my system. Current cabling cost varies from 10% - 15%. I do find that used cables hold their value extremely well, so ultimately have spent very little on cables.

I spend or spent 10% of the cost of a component. $2,000.00 = $200.00 for cables.

In looking into this I've found that some people even break down the components into a percentage, i.e. 60% for speakers, 30% for sources, ect. ect.

I bought the "best" turntable at the time I could afford, SOTA STAR Sapphire  $2000.00 and pretty much stuck with that as a general rule of thumb. Cartridge, pre- amp, phono amp, headphones, Headphone amp, amps. speakers. DAC.  After making my mind up for the final choices based on my preferences for sound. I'm happy with the final choices.