need advice with power cable

Can i replace the stock 15A  power cord with a 20A custom.?

Will this cause any problems to the Arcam AVR400

Thanks

Elizabeth,
Plugging it to the conditioner makes the break in faster,
thank you so much I had not thought about that.

The concensus is pretty clear from all of you "LISTENING" and thats what I will do, I'll try from amp to conditioner and get more cables if needed to experiment.
I want to thank all of you for your valuable input.

i read some advice here that stated put your best cord on your pre amp. some more advice said put your best power cord on your source. then some more advice said put your best cord on the power conditioner as it is first in line. i put a morrow map 3 on my preamp and it was remarkable. then i put it on my conditioner [panamax 5300] a month later and that too had an effect that was very nice. this tells me i need morrow map3's [or maybe map 2's for lower current pieces]on all my components. just trying to use logic....

You have the cables, you have the ears.

Agree with Zman and if you can't hear a difference I'd go with keeping it plugged in to the Panamax for some protection from a surge or brownout.

You have to learn to trust your ears. Don't argue with me. :-)

I think you should try it both ways and make your own decision. Run it pluged into the cond. for a week and then without and see which one you like the best.