Hi Mizuno
I kind of agree with Facten's statement.
"Do think, if nothing else, that you are short changing yourself in what music your are probably "not hearing or isn't being revealed" using the radioshack ICs and whatever comparable SCs you are using, as well as the quality of the cable between the "source" and the DAC"
I know the biggest change in sound I've heard other than moving speakers around and changing to quality components was changing stock ICs better quality ICs. I got good results when I swapped out the thin stock ICs that came with my cable box that I was using from my preamp to amp to MAC UltraSilver + ICs. I didn't spend an insane amount of $ on these ICs. I'm sure if you even went from the stock ICs to something from Blue Jeans Cable or Monoprice you would hear an improvement.
I kind of agree with Facten's statement.
"Do think, if nothing else, that you are short changing yourself in what music your are probably "not hearing or isn't being revealed" using the radioshack ICs and whatever comparable SCs you are using, as well as the quality of the cable between the "source" and the DAC"
I know the biggest change in sound I've heard other than moving speakers around and changing to quality components was changing stock ICs better quality ICs. I got good results when I swapped out the thin stock ICs that came with my cable box that I was using from my preamp to amp to MAC UltraSilver + ICs. I didn't spend an insane amount of $ on these ICs. I'm sure if you even went from the stock ICs to something from Blue Jeans Cable or Monoprice you would hear an improvement.