I have two sets of Koss Pro 4AA Earphones that I purchased around 1965. I use them for television programs, especially the good movies. I like these particular sets because the bass is not so prominent and the buzz that is inherent in the tv does not seem so prominent in these phones as some of the newer earphones.
I am having problems with the sound reproducers. While I am watching a program in stereo, I can detect the left channel beginning to fade, the moreso, until it is completely off, while the right channel continues. I have a long stereo cable from the tv to the headphones, about 10 feet. I have checked the cables and these are not the problem. I can apply the leads of a 1.5 volt batter in a battery holder, scratching the leads onto the stereo connector, and the right side is quite clear with the pulses, but the left side is dead at first, and then recovers and responds to the pulses.
I would like to know if anyone has had a similar problem with these earphones. I don't want to send them back to Koss for replacement of the reproducer because they might put in one that has a greater bass response and I don't want that for these particular earphones.