I sent in a DC 10-20 to Headsets Inc last month for them to install one of their ANR kits.
http://www.headsetsinc.com/ANR_kits.html
Got it back Monday, and (except for the 4 week turnaround time) I'm pretty pleased.
The ANR kit was $169, the 3-in-1 cord $22, installation $50, return shipping $15- for a total of $256.
When I opened up the box, I discovered that they replaced my old gel seals with a $20 new set, but didn't charge me for them. Everything they removed was bagged & in the box.
I've never had an ANR headset before, although I've tried a few that belonged to others.
The ANR works as well as any of those I've tried. In fact, sometimes the ANR is almost a little too effective-- I might be leaving it turned off at takeoff time, so I can more easily hear if something's not right.
Unlike some other ANR headsets, this one cuts down on the noise pretty well even with the ANR turned off. I also discovered that the radio volume is higher than before, and that my crappy sidetone is now loud and clear. KInd of a win/win.
For anyone else who like me wants to try ANR but doesn't want to plunk down several hundred dollars for a new headset, this is a pretty good way to go. Headsets Inc also sells their own brand of ANR headsets for about $400, available from Spruce or direct from them . And looking through my Pacific Coast Avionics catalog, I see that they also offer their own ANR headset for even less, $349.
https://www.pacificcoastavionics.com/pr ... anrbt.aspx
