Power cord for McIntosh 402 amp

I don't have the MC402 but I have the MC352 which is very close to it and I also have the MC206. I was also upgrading power cords but did not want to spend a small fortune. I tried both the Analysis Plus Power Oval and the Signal Cable Magic Power Cord. Both were significant upgrades over the stock power cords with both units. I really could not distinguish a big sonic difference between the two both but I went with Signal Cable Magic Power cord since I could buy a six foot cable at half the price of the Analysis Plus. I have them on both of my MAC amps and all of my subwoofers.

For easily under $100 bucks, it is a very good upgrade for MAC amps.

Oyaide Tunami GPX is a good possibility.

I just replaced my 352 with a new 402 and am using the Cardas Golden Reference. I had used a Harmonic tech Pro AC for a few years before that and I really beleive that I gained in two areas 1)a more "black" sound in the quiet transients and 2)i feel that I have a more dynamic response or maybe a better description is a more effortless presentation. You can find them here on AG used for that 300 price point and can probably always recoup your investment if you decide to sell. One other suggestion is contact usedcable.com about thier lending library and try a few different cables. I must add that I have Cardas GR throught my system except speaker cables. And the improvement I experienced may have been derived from system synergy.