Quote (Neutral @ Feb 10 2015 01:37pm)
The Sennheiser HD600/580 stock headphone cable is MUCH better sonically than the Sennheiser HD650 stock cable. The HD650 stock headphone cable uses considerably more signal polluting dielectric which degrades the audio signal. If you want to improve the overall sound of your HD650's, change the stock headphone cable to the HD600/580 stock headphone cable. That improvement just scratches the surface as far as how much sonic improvement the E-Series cables offer the Sennheiser HD650, HD600 and HD580 headphones.
Just read this somewhere.