Can flexible power cables sound good?

Running a couple/various PS regenerators for past two decades..
Have PS AC12 cord–balanced warmish sound with enough detail/resolution that’s good value for the money, yup they’re rather stiff.
Shunyata HC/XC range are better—cleaner, more refined, better resolution though for more money, using their Sigma on one P20.
Ime, into the P20 (or any other power distributor blocks/cond. for that matter), only by using High Current delivery types you’ll tapped on their true potential—usually thick girth wise and mostly inflexible.
But so long as there’s 4 inches clearance from rear of your P20 outlets, the Shunyata should be fine (fairly flexible beyond that).

My Signal Cable power cord wants to droop a little in the back of my Jolida Fusion 3502P power amp.  Fortunately it sits so close to the floor that I can prop it up to a level position.  It seems like the IEC end of some cords are loose for some reason.  This is not the first time I've had this problem with a piece of equipment and an after market power cord.

The next power cord I buy will be a nice one that also stays seated in my preamp easily with no special fuss.  The stock cord does that well.  Shouldn’t be too much to ask for I hope.

A strip of black insulating tape around the end of the connector will often ensure a tighter fit in the receptacle on the back of the unit.  

@twoleftears,

Thanks for sharing that. I've read that a few times but forget to try it.