Like I said hams do not read the post the so commonly blast apart, FBI gets something out of this post that is negative at every turn and more than likely has had his ticket for maybe at best 5 years!
Now by the way on Heil's site they say it can be used with other manufacturers rigs not JUST ICOM but for some reason if you call there SC department they will tell you even if you apply the 5VDC coming out of the FTDX101D it will not sound right at all and this is correct cause I did the appropriate wiring using a blocking cap with resistor and no mater how you adjusted it it sounded like crap, it was like a tone deaf sound that nobody who I have talked with for over 50 years said it sounded even close to my voice but oddly enough it did work with a FTDX10 I had before I bought the 101D.
For some reason the mic preamp in the 101D is different than the Ten or other Yaesu rigs that applies 5VDC out from the mic connector just for that use of electret condenser mics.
First off Bob Heil is no longer at his company running the show, he is home and I hope he is conformably retired but this post is more about the people who now run Heil and it has changed, they will no longer sell you parts for the boom headsets so you can fix little things yourself. Back in 2018 I completely rebuilt a Boom headset pair including replacing the earphone parts, wiring and earpads but gave it away to a good friend since I had that headset since 1995 and I figured since back then I ran the Icom rigs the Proset IC worked great in which they did on most Icoms but only some Yaesu rigs.
I also tried buying like one ham posted some cheap mic element on e bay but none of them sounded especially decent even after some acoustic padding inside the booms plastic surround.
Heil Sounds new cooperate policy is they will not sell parts like they used to, maybe cause some hams don't have the patients to work with fine wiring inside the headset or boom or they are afraid someone might catch onto there cooperate secret mic elements but I have no idea but they no longer have the great customer service as what they had just a few years back when Bob was still at the helm.
To the newbie who claims I hate certain things well this may be your opinion but I do not hate but dislike the way the new Heil company has become but have used there products before for over 10 plus years and using the term ebonics was making fun of you not even reading the whole post from the beginning which it seems many do not!
5 years? ..Do your homework! I was licensed since 1998. So this will be my 24th year not my 5th.
There seems to be a problem with your perception of reality and facts.
You failed to notice that the majority of posters also think your post is unfounded and uncalled for.
So now you don't like Heil, Black People or FBI.
No wonder why God punished your head.