AC POWER DISTRIBUTOR/POWER CABLE VERSUS DEDICATED

A dedicated 20 amp (2400 watts) circuit is more than enough for
anything you would ever use. A 30 amp outlet is for a clothes
dryer or hot water heater with a different type of plug that no
component cord would even fit . So yes ,you are better off
spending the money on a dedicated circuit than a power
distributor !

Great. I will have the electrician install two 20 amp dedicated circuit lines .
Second part of the question: does the electric cables , as well as the connection to the breaker box and the wall plug have to be a certain kind or models ?
Also, can someone clarify on the fact of having a power conditioner for the whole house installed?
Thank you kindly for all your answers.

Any licensed electrician will know what to install. Are you sure you're not doing this yourself ? If you are, be careful you don't burn your house down!

10-09-15: Yogiboy
A dedicated 20 amp (2400 watts) circuit is more than enough for
anything you would ever use ... One amp = 120 watts,so you can do the math and
you will see that you will never need any more than that.

Oh no, this is completely mistaken. That's because no amplifier is 100% efficient. Look at a Bryston 4B amp, for example. This nominally a 300W/channel amp, but it draws 2100 watts of AC when driven hard at 4 ohms. So if you're running high-power amps, you'll want a 20A dedicated line for each, plus at least one more line for your source components.

Cleeds, I stand corrected. That Bryston sure draws lots of current !