Yes you can change it to a better cord and it will sound better. If you sell it then just be clear on what you have done. I have changed and in the end improved lots of stock gear with better quality parts. Yes, we need to clearly point out any mods when sold.
Goodness the level of improvement afforded by simple mods is both staggering and relatively cheap. Better caps, resistors, wire, attenuators and on an on.....high end stuff is often built with embarrassingly cheap and inappropriate parts quality for the selling price. Yes, $10,000 plus speakers with $8 caps in key positions that sound ok, but can be greatly improved.
I have seen many $3000 - $4000 preamps with a poor sounding ALPS pot when a nice stepped Attenuator would elevate the sound in a stunning manner.
Goodness the level of improvement afforded by simple mods is both staggering and relatively cheap. Better caps, resistors, wire, attenuators and on an on.....high end stuff is often built with embarrassingly cheap and inappropriate parts quality for the selling price. Yes, $10,000 plus speakers with $8 caps in key positions that sound ok, but can be greatly improved.
I have seen many $3000 - $4000 preamps with a poor sounding ALPS pot when a nice stepped Attenuator would elevate the sound in a stunning manner.