• 1
  • Problem
  • Updated 5 years ago
I have very strange problm on my flex-6500 I tried a HeilSound Pro Set Plus but i listen only on right channel , I have to go out slightly off the jack stereo headset to listen to both channels, this problem is not present with other headphones on my flex, same goes if I try this Pro Plus Set on other radio works very well, how come this problem?
Photo of Frank, IZ7AUH/AK1CQ


  • 175 Posts
  • 6 Reply Likes

Posted 5 years ago

  • 1
Photo of Ed baker

Ed baker

  • 114 Posts
  • 8 Reply Likes
Check the trs plug on the headset .
Photo of Edward Armstrong-WB2K

Edward Armstrong-WB2K

  • 25 Posts
  • 1 Reply Like
Hi I had the same problem with a set of computer speakers.
I believe what you're saying that you have to pull the ear piece plug out of the radio slightly.

RadioShack sells a stereo to Manolo adapter that should fix your problem.

Photo of W1RE


  • 95 Posts
  • 18 Reply Likes

Can you provide more information on the adapter from RadioShack.  A search for "Manolo on their website turns up nothing. 

I am having lot's of trouble trying to find the right plug for this.


 - Bob, W1RE

Photo of Ed baker

Ed baker

  • 114 Posts
  • 8 Reply Likes
OK if your other headsets are providing that right/left   audio . It is something to do with the TRS connection on the HEIL 

1. The alignment of the TRS mini out of the heil is not correct,
2. The wiring inside that trs connection is not correct.
3. The normal wiring is tip  one side ,  ring one side , sleeve return or ground 
4. The connection cable provided by heil is not correct for your use 

Shorting tip and ring usually will give you only right side in both headphones .
This is what 's going on when you gently pull out that connection .( You have tip and ring together )
Also if you used a trs to tr  stereo to mono adapter you would again be shorting that left and right Channel  together .

For me fix the headset it should work exactly like the others .