Hello nasaman. Get the right adapter and use a hair dryer for a day or until it starts to melt. Half a day is probably enough. The ones I have sounder better right off the bat, so I just used 'em. and was happy they got better over time. Happy Listening!
What use to burn in power cords?
Is there a small electronic device or a burn in device that I can leave on 24/7 to burn in my 15A IEC power cords?
What do you use?