Try out the NuForce Impulse Cable. It comes in 0.5 and 1.8m lengths at $20 and $30 respectively, so it's almost for free :)
http://www.nuforce.com/hp/products/cable/index.php
In my setup, compared to the standard stock USB-cable that comes with the Icon HDP, the inclusion on the Impulse cable has brought with it better differentiation and added clarity/calmness. Moreover a sense a glare (with the stock cable) has now been replaced with more texture, making especially voices appear more natural and "there." There's a hightened sense of what's going on in the music, and one could say that if sound is air then it's now both a gentler and a bit varmer breeze.
It is my impression that 100+ hours through the Impulse cable has made the sound more organic. For some reason I didn't expect this cable to be sensitive to burn-in, and that being so I'm a bit more confident actually hearing the difference.
http://www.nuforce.com/hp/products/cable/index.php
In my setup, compared to the standard stock USB-cable that comes with the Icon HDP, the inclusion on the Impulse cable has brought with it better differentiation and added clarity/calmness. Moreover a sense a glare (with the stock cable) has now been replaced with more texture, making especially voices appear more natural and "there." There's a hightened sense of what's going on in the music, and one could say that if sound is air then it's now both a gentler and a bit varmer breeze.
It is my impression that 100+ hours through the Impulse cable has made the sound more organic. For some reason I didn't expect this cable to be sensitive to burn-in, and that being so I'm a bit more confident actually hearing the difference.