It might be OK to upgrade your Power Cables, but BE RESTRAINED.
If you look in this thread, you will get a fair estimate of the Power Capabilities of various common wire sizes. This was intended for Speaker Wire, but it applies to Power Cable too.
Keep in mind that to arrive at the numbers I converted Current to Power
which requires an impedance.
Here is a sample just so you understand -
would look like this -
Power = Current² x Resistance = 5.9² x 8 = 34.81 x 8 = 279 sustained watts of power
Power = Current² x Resistance = 15² x 8 = 225 x 8 = 1800 peak working watts of power
Power = Current² x Resistance = 32² x 8 = 1024 x 8 = 8192 max peak watts of power
Notice a 14ga wire will sustain nearly 300 watts All Day Long.
It as a working peak of 1800 Watts which it will sustain for a reasonable period of time.
And a more than 8000 Watts Maximum Peak Power.
Now the first number in Bold are the actual Current.
So, let's work backwards to find out how much Line Current an Amp requires. If we assume about ±50 volts per channel for a 100w amp, we can work out the output current.
= P / E or 100w / 50v = 2 Amps x 2 Channels = 4 Amps
A 14 ga wire will sustain 5.9 Amps, and has a working peak of 15 amps. So, 4 amps is really not straining it, and remember that is 4 Amps of sustained unwavering current, which is not how properly functioning Amps work
Power In = Power Out
So, adding 50w for losses and residual power -
I = P / E = 250w /120v = 2 Amps
So, to SUSTAIN 250w or 4 Amps on the output (coincidentally 2 Amp per amp channel)
only requires the Power Cord to handle 2 Amps Total to drive both channels including losses and residual power.
That is 1/3rd of what the Power Cable is capable of Sustaining All Day Long, and 13% of the Cords Working Peak Current. You are not straining that cable at all.
However, if you Electrical Outlets are the cheap $0.80 Variety from Walmart, and the Cords do not make TIGHT contact, then it might be worth getting better cable and outlets. But this better cable will not cost that much money.
You can go down to Home Depot or other similar Store, and get -
- Commercial or Hospital Grade Plugs
- A Commercial or Hospital Grade IEC Amp Plug-in (2 or 3 conductor as needed)
- Quality 14ga 3-conductor wire
Each of these items will cost $5 to $10 Each depending on how far you want to take it.
Now, you can dress these up any way you want. Get some fancy sleeving to put on them, again, not free but reasonably cheap. Apply a little labor to wiring it, and for about $25 to $50 you have the highest quality Power Cable.
Don't be confused by exceptionally FAT Power Cable, that FAT is mostly air. You can spend $100 or more on FAT Cable that at its core is only 14ga.
Hospital and Commercial Grade Plugs grip very tightly, and where they plug in that can make a difference.
What also makes a difference is the Wall Outlet. Instead of common generic Wall Outlets, you can again get Commercial or Hospital Grade for about $5 to $10. But if you would like to burn some money, I can point you to Wall Outlets in the $50 to $100 range.
So ...yeah... you might like some nice well-made heavy duty Power Cords, just don't pay a fortune for them because all you are really buying is appearance.
There are several threads in the forum of people taking plain-jane speaker wire and dressing it up with sleeving, a fancy jacket and pants (yes cable pants are a real thing)
putting on some fancy connectors (banana plugs) and having cable that is selling for a small fortune.
The same can be done with Power Cords, buy the Plug ends, buy some good wire, dress it up to suit your needs, and wire it together.
You don't really gain anything, but you have some nice heavy attractive cool looking Power Cords. Be happy with that because if you spend $100 per Cord, all you are getting is Pretty Cords, and you can make your own Pretty Cords.
So, you can have a very basic functional 14ga Power Cord, your you can have a painfully expensive Power Cord, or you can just have a nice look heavy duty Power Cord, but mostly what you are buying is .... Pretty.
Now there are good quality Power Cords ready-made but again, don't go spending a fortune on them.
As Power Cords go, from a realistic perspective, even these are overkill -
Here is one that is just as good, but a little less fancy ... $20 -
And Power Cords like this are simply God's way of telling you that you have TOO MUCH MONEY -
You want a nice cord ...cool... just don't expect too much and don't spend too much.
On the other hand, it is your money, spend what you want.