Power cord for low-watt tube amp?

I am sure power cords make a real and immediately audible difference. I would think though, that a good cord is a good cord, which may or may not match well with a component. I am not so convinced a cord is good for CD players power amps etc.
2 cords I use at the moment are Lessloss DPFC and the new Sablon Audio Robusto. Both are excellent, but quite different in their effect on reproduction.
In general, if you can borrow dem cords from your retailer or the cable company, or buy 2nd hand, you reduce any risk of expensive mistakes

Stock power cords work, some folks like them, others try DIY, and then some prefer the more exotic varieties.

The only way to know what suits you is to try some.

In my expereince,I haven't found a product that didn't benefit from a better power cord.

So even though my amp only puts out 2 watts, it gets it's juice from a Python CX,Hydra 2,30 amp dedicated line of 6 feet from the panel.

I think the fewer the watts, all the easier to really make them sing, or screw them up.

best way to go is ask the mfg. what they recommend