Thanks all for your input. I ended up purchasing an Audioquest Thunder 2m power cable to test the waters and so far it has made a positive difference.
The biggest difference has been with the Hegel's DAC, which sounds more present and dynamic. This is most noticeable with a better bass response and increased detail. It's not night and day, but enough of a positive change that I'll be keeping the Audioquest for a while before experimenting any further with power cords.
The biggest difference has been with the Hegel's DAC, which sounds more present and dynamic. This is most noticeable with a better bass response and increased detail. It's not night and day, but enough of a positive change that I'll be keeping the Audioquest for a while before experimenting any further with power cords.

