Power Cable for Simaudio Moon i 3.3 Integrated Amp

I had the predecessor to the I 3.3; the I-5080. It really rocked-out with Cardas cabling, admittedly. I now use Virtual Dynamics power cables and Audience IC's and speaker leads.

I think Cardas AND Audience would be good directions to try; Cardas would be fuller and bass-heavy while Audience might be more 'neutral' ?

I have all Nordost cabling. I love their house sound. I would suggest trying a Nordost Vishnu power cable. It should be at the right level of performance for your amp

I have had the I-3SE, I-5, and I-7. I started with Signal as Bryn mentioned in his post. Though better than the stock cord, there are better without spending a lot of money. That said, I have found better results focusing on the interconnect and speaker cable before seriously looking at the power cable. If you are happy with your ic's and speaker cables then spend reasonably on the power cable.