The TS20 is full OCC copper, but only 14awg, so for high current amp it could be a little bit current limiting.
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The TS762 is standard Alpha (NOT OCC), but 10 awg biggest cable. The TCS31 is, apparently, their new Triple-Alpa process that I think gets the wire closer to OCC, but is 12awg. So, ulitmately, The Triple-Alpha TCS31 may have better sound quality, but the TS762 may be able to draw high levels of current better.
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In all honesty, I wold not choose any Furutech cable because of my preference for solid-core, but in the above choices, the TS762 might do a little better on the amp for bass and slam. Amplifiers will be influenced by things like copper quality, but they are less influenced than source/preamp components.
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The TS762 is standard Alpha (NOT OCC), but 10 awg biggest cable. The TCS31 is, apparently, their new Triple-Alpa process that I think gets the wire closer to OCC, but is 12awg. So, ulitmately, The Triple-Alpha TCS31 may have better sound quality, but the TS762 may be able to draw high levels of current better.
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In all honesty, I wold not choose any Furutech cable because of my preference for solid-core, but in the above choices, the TS762 might do a little better on the amp for bass and slam. Amplifiers will be influenced by things like copper quality, but they are less influenced than source/preamp components.