Have to jump in here and make a comment or two...... First I use to build 1/4 inch plugs for the music industry, the same type we detectorist use on headphones. First I want to state that while gold plated plugs are suppose to be a better material for sound quaility, Metal detectors do not posess the capability to generate the type of quaility sound to make this of any conseqence. If it makes you feel better that it has a pretty gold plug than so be it. I will say that even the highest end headphones us detectorist use (Sunray, Grey Ghost, Ratt phones ) All use the cheapest molded plugs available from China! Like the old saying you get what you pay for! I own a few different sets of headphones and the first thing I do any more is cut the existing plug off and replace it with a high end sound plug such as one made here in America like a G&H plug, these are hand made and inexpensive, they will make even the cheapest set of headphones sound better than the best out there......just my 2 cents
HH
Slipperyjack47