I have replaced hundreds of power cords on older gear ( anything without an iec receptacle ). I do not like iec receptacles, but, having them is convenient, and I learn to live with them. Anyway, always hotwired, with a larger gauge cord, purchased from Lowes or HD. Always an improvement in sq, always. In the case of the 2200 amp, a 2 wire, with a heavy duty grounded 3 way plug, without the ground connected. Just make sure of the polarity.
Vintage preamp/amp power cords
Let me just say I don’t want to start a discussion if power cords make or don’t make a difference. I’m just curious to know if folks with older gear with captive power cords mostly considered a replacement with IEC type plug. The power cord on my McIntosh MC2200 is literally a little better than a high quality modern lamp cord, But it’s been there for almost 30 years. The main objective of the replacement would be safety as well as Sonics, if any.