Furutech GTX NCF receptical break in, how long

Rhodium takes a seriously long time to break in so hang in there!

In having burned in more than a dozen rhodium components, I would put the real burn-in at about 200-240 hours for anything that has a Furutech level of rhodium plating.  It really depends on the system, but the last bit of 160-200 hours could be very bright, harsh and painful.  Or you may not even notice it (an outlet is somewhat removed from the equipment circuit as you still have power cord, IEC, fuse to go through before the electrical hits your actual circuit).

Thanks, just want bass to come back,my speakers go low and its very bass shy and not worth listening to. I can handle tipped up treble.I'm at just under 300 hours. I was considering pulling it and moving it to fridge and freezer for a couple weeks.

Auxinput is correct, painful treble did come in at around 160 hours and is unlistenable but that is gone now at 300 hours.

Don't give up on it. It takes some time. Easily the best receptacle I've used.