If you meant the T-14, it's 2x14awg silver-coated copper. The Q-10 is 2x14, the same wire as the T-14, plus 2x12awg of the Ag/Cu wire, so it's set up for bi-wire, or for a total of 10awg for a stereo pair. DH Labs used to make a T-12, which was 12awg, and I compared it to the Zu Audio Libtec silver/copper, at 11awg. The Libtec were higher capacitance than the T-12, and I much preferred the sound of the DH Labs. They cost half as much, also. If you don't need the 4-conductor wire, I'd go with the T-14.Does anybody here have any detailed remarks between DH-labs Q-10 vs the less expensive T-15? As in what's better in the Q-10? What's lost with the cheaper option?