Do I need 10 gauge power cord if I have 10 gauge from panel?

FWIW I built my own power cables using Furutech bulk cable and connectors. You can buy what awg you want as well as shielding. I made mine custom length to each component. I bought cable covering from Amazon and some shrink tubing for the ends. It was fun project. Cost was around $170 per cable. You can buy less expensive connectors if you wish. 

I should have added that every circuit in my home is 20 amp. It was built that way and not something I did as we bought it from the original owners. 

@ditusa : my apologies after seeing your big Crown amp. How many wpc at 8/4/2 ohms? My Perreaux 2150B does 340/680/920@8/4/2 ohms. I will look and see what gauge power cord is on it. Also I was wondering if the MacIntosh 1000 watt mono amps use a 10 gauge or better cord?

@61falcon Wrote:

@Ditsua:

What is the current rating on that Crown amp?

Crown says current draw is 23 amps @ 120 volts AC. See manual below, page 33 figure 8.1 Studio Reference I power draw, current draw and thermal dissipation at various duty cycles.

Mike

@jasonbourne52,

👍

The crown amp is 780 watts WPC @ 8Ohms, 1160 @ 4Ohms, with a damping factor of 20,000. See manual in post above.😎

Mike