I tried out the in-line male IEC connector with my Magnum Dynalab FT101 tuner, but cutting all but a nub of the stock cable, and attaching the male IEC to the nub. With the Crump DIY cable, the results were fairly dramatic. Much stronger bass and dynamics, somewhat less noisy reception. Only complaint is that male voices seem chestier (mid-bass bloat).
I haven't gotten my DVD player yet, so I haven't had a chance to try out the upgrade with the DIY two prong to male IEC adapter. I did get contacted by a source for the two prong plugs, though: folks at vantageaudio.com apparently have a stock for about two bucks each. The plugs require soldering to attach a cord, and given the small size of the plug, this strikes me as slightly unsafe for DIY, but it would allow you to get around using an additional connector.
I haven't gotten my DVD player yet, so I haven't had a chance to try out the upgrade with the DIY two prong to male IEC adapter. I did get contacted by a source for the two prong plugs, though: folks at vantageaudio.com apparently have a stock for about two bucks each. The plugs require soldering to attach a cord, and given the small size of the plug, this strikes me as slightly unsafe for DIY, but it would allow you to get around using an additional connector.