Power Cord suggestion please

Here’s a different perspective: consider what you want out of a power cord. Do you want it to look pretty or serve an active role in reducing transient noise? Every half-decent product has filter chokes and bypass capacitors immediately after the power inlet. These present a low impedance to the undesired high frequency noise. So, with this being a low impedance, we will not drop much of the noise amplitude on the doorstep of the power supply _if_ we have a relatively high impedance elsewhere upstream (ie: the power cord) to drop the majority of the noise. Remember, the noise is energy, and we can’t create or destroy energy, but we can move it around.  My point is that a 12AWG power cord will not present a significantly high enough impedance relative to the input noise filter of the amplifier. That is the irony of ultra large gauge power cords. They look nice, but they are a detriment to noise filtering. Also consider your load is 130 watts, which is just under 1.1 amps at 120 volts. Even a common 18AWG power cord will have oodles more ampacity than you could ever need. Stick with the existing cords unless you are just looking to burn money. 

@Jethro1964 said:

I would disagree with anyone who says don’t waste your money on power cords. I think it’s sonically one of the first upgrades u should do. I was blown away by the difference. Some would say it is the upgrade that will make the largest difference in the sound and I would totally agree.

A heavier gauge power cord will only make a difference in sound quality if the original cord is starving the amp for voltage. In technical terms that means the resistivity of the cord is too high, and the product of the cord set resistance and the current drawn by the amplifier is causing a significant voltage drop. Even for a wimpy 18 AWG cord of six feet, the net resistance is only 0.077 ohms, and if 20 amps of current were drawn instantaneously, that would cause only a 1.5 volt drop. That means at 120 volts, a 1.3% voltage drop. Nobody’s ears could discern such a minuscule difference.

The original poster’s self-amplified speakers dissipate a measly 130 watts, or 1.1 amps of current at 120 volts. Over the above 6 ft 18 AWG cord, a maximum peak voltage drop of 0.08 volts would be possible. That is a 0.07% difference. In other words, a six foot, 18AWG power cord could never starve the amplifiers. It is not a limiting factor.

An improvement in SQ would be obtained by replacing the amplified speakers with a good discrete amplifier and better quality speakers.