Tara Lab cables have bad quality control?

I bought a pair of Tara Lab Air2 cables, after I installed from preamp to poweramp, it came out very loud noise, blown out my Dynaudio 3.3's tweeters, then I tried my old cables, worked fine, I took it to the dealer I bought(San Fracisco Stereo), the salesman tried it again, came out very loud noise too, he thought the shielding of the cables may damaged, this was the 2th pair Air cables got problem, first pair had no signal, this tim they agreed to change a new pair, but they refused to reimburse my tweeters, has anyone have this kind of problems?

Bill