Power cable for 5 watt SET amp?

I use(d) the MAC HC on my previous Sophia baby and current Sophia EL-34. I'd gone through Shunyata (venom), Soundstring, PS Audio and a xStream Power Master.

When it comes to power products, you really need to try them in your own system. Results vary greatly and for different reasons. If you call The Cable Company, they'll send you a few to demo in your own system. I would recommend listening to Richard Grey and ESP, given your amps. Both are known to work very well with a lot of different components. I use them myself. I'm sure there are others that are good, as well, but these are the ones I have experience with.

Check out the Triode Wire Labs power cords. Specifically the 7 or 10 Plus. The maker/designer of these cords is really into tube gear. That and they have been praised heavily by tube enthusiasts.