I figured I would ask this here since *maybe* its computer related. I just built a new computer, using the MSi-Z97 Gaming 7 motherboard.
It has the realtek 1150 chip, with emi shielded isolated PCB for the audio chip, They also boast that with their 'Direct audio power' (basically
plugging a 5V header to the motherboard) that they can drive 600ohm headphones through the headphone port in the back.
I was listening to the Transistor Soundtrack, when I heard a crackle or a popping sound, so I replayed the track and it happened again,
but not in the same spot. So I sat there, replaying the track and was getting a bunch of popping and cracking. I immediately thought
my HD558's were broken. But I had just got them from amazon, brand new a week ago. So I plugged the headphones into my S4 and
played the same file, that I just transferred from my computer, and got no popping or cracking sounds. I also noticed something else
my S4 seemed to drive them better. So I transferred the same song over to my older Iphone 4s. and still no cracking or popping and
also seemed to drive them better than the S4 and the computer. So I plug it back into the computer but this time I put them into the
front panel port to see if they pop and crackle from there, and they did. So just for good measure I put them back into the back port
but this time the pop and crackle was gone. So I tried the front port again and it was gone from there too. Also noticed that the front
panel port seemed to drive the headphones a bit better as well.
Anyway, sorry for the long and boring post, but any idea's as to why it started popping and cracking in the first place? and by driving
I mean those devices and front panel would play louder, not necessarily better quality.
And my testing was playing the first 10 seconds of the sound over about 20 times on each device. When it started happening, it would
happen every time I restarted the track.