Klipsch Forte III and 2A3 tube amp cable advice

My Forte III's sound very good with all amps I've used. I have used Carry CAD-2A3 SE monoblocks (5 watts) and a friend brought over a flea-flicker 1.5-watt amp that also sounded very good. You should have no problems at all with your Triode Lab 2A3.

Any cable that uses silver or OCC copper should do the trick (the Harmonic Technology Magic ICs actually use both).  

Sorry, I meant to add (but got distracted) that the HiDiamond 9 (probably any of the HiDiamond series) and the Toto-Tungsten by Bogdan (sold on this site) sounded very good. I agree with dweller, any OCC copper or silver (not copper silver-plated) should sound good.