power cord recommendation for Plinius 8200mk2

I'm currently using siltech power cord(MXT Berlin)for my plinius mk2 intergrated. At the moment it's really detailed, very natural midrange, smooth high, but the bass is a bit lean. I've been thinking of upgrading to higher siltech but their high end stuff are very expensive.
My taste is inclined to neutral sound, i like more impact in the bass area, as so far that's the area i'd like to improve.
My budget is 1k USD and below, i don't mind the thick power cord as long as it's flexable, i got a tight space where i have to bend the cord somewhere.
Thank you