I agree with all of the preceding comments. Both gauges are extreme overkill, and other less predictable factors will determine the sonic effects of the cables.
As Stan indicated, narrower gauge wires have higher resistance. Resistance in the signal conductors of a balanced interconnect cable only matters if it is significant in relation to the input impedance of the component that it is feeding a signal into. The resistance of six feet of even 28 gauge wire is much less than 1 ohm. The input impedance of most audio components is tens of thousands of ohms.
The same principle also applies to unbalanced line-level interconnects, except that the resistance of the signal return conductor (which may or may not be the shield) can sometimes be significant as a result of its relation to ground loop effects.
Regards,
-- Al
As Stan indicated, narrower gauge wires have higher resistance. Resistance in the signal conductors of a balanced interconnect cable only matters if it is significant in relation to the input impedance of the component that it is feeding a signal into. The resistance of six feet of even 28 gauge wire is much less than 1 ohm. The input impedance of most audio components is tens of thousands of ohms.
The same principle also applies to unbalanced line-level interconnects, except that the resistance of the signal return conductor (which may or may not be the shield) can sometimes be significant as a result of its relation to ground loop effects.
Regards,
-- Al