I had three of them in the past and I love this headphone! I am very glad of the improvement you made! Nice sound for the price, comfortable, nice colour with that blue ring! Love it!
MrKardaKoss has a Lifetime Warranty on the PortaPro's.
I bought mine back in 1987, I have mangled, damaged, trashed them several times now, each time they have been warranty replaced no questions asked, this is my 3rd warranty replacement headphones.