I have ref1000m amps. These draw a lot of current when powered up not so much after. I use basic cords on those. Higher grade shielded cords on source gear. The amps power supply seems designed well to have power in reserve when needed. So I have not felt a need for beefier power cords. The amps are very efficient sound great and never break a sweat. Beefier cords not needed as much in some cases compared to others. Devil is always in the details.
Bel canto monoblocks and power cables
For those, like me, who believe power cables make a difference: anyone with experience with bel canto amps and power cables. I use Nordost Vishnu with all of my source equipment and hear significant improvement. With my BC ref 500m monoblocks, which I love and which sound so good, power cable swaps don’t seem to make a difference. I’ve tried Nordost and Acoustic Zen Tsunamis. They don’t degrade the sound but there doesn’t seem to be much benefit either. Anyone?