What is the best power cord for pass labs xa100.5?

Be careful with aftermarket power cords on Pass amps. On my Aleph 0s the iec female is inside of 10mm of milled steel. The heavy gauge stock power cord fits perfectly. No after marker connection I have tried fits correctly into this deep recess. I found this out the hard way when one of them made poor contact and shorted the iec and power thermistor.

home audio = live music - really? Give that one more thought! Aftermarket cords and wire - that is aftermarket brilliance!

The ultimate profit - wire builders and sellers giving audiophiles what they demand - always looking for sound improvement. How many audio nuts are willing to spend 2K on a cable when it really takes the next price point in an amp, speaker, or frontend to make a noticeable and sustainable difference. That in most cases is a much bigger jump - 5K, 10K or more and that takes a bold move that lightens the bank account significantly for most.

Yes, Pangea is the answer to EVERY powercord question.........

The OP got it right. He did not use the original power cord because it did not look "fancy". However, he finally decided to give the original a try only to find it sounded better than the aftermarket cord that was degrading the sound.

If you have assembled your system properly you will not need aftermarket power cords, power conditioners, room treatment, outriggers, cones and all of the other crap they have you believing you need to get good sound.