New Pangea Audio AC-14 XL Power Cord

Well it uses a few more 'better' copper wires in the mix. The only visual difference is the purely cosmetic metal caps on the plugs.
So i would guess (not having bought one yet) it is a little more refined than the 14SE
I note that Audio Advisor does not exactly explain what wires are better. a mix, a few bits??

I went for the AC9SE and it was better in some situations than the AC99.
So I would guess the same can be said for the 14XL over the 14SE.

I plan on getting one or two eventually. When they offer a deal for eary adapters.. The current extra discount for return of power cables bought from them in the past two years only.. I cannot use as mine are older..

Discount for return of power cables?

I think that promotion is over with. You would have to call Audio Advisoor.
The deal was only for people who bought any power cords from Audio Advisor in the past two years. You could return them for a full credit of money paid, toward the new Pangea 14XL.
For me thhe problem was I bought my 14's more than two years ago, so no deal for them.

Resurrecting Zombie thread alert!
The Pangea AC14XL are now on sale with different lengths discounted as little as 14% or as much as 33%.
Since only one place sells them... No need to say where.
Did I buy any? yes.
Are they any good. Yeah, OK.
One curious thing is the advertising. They harp that the plugs use pure copper, over and over, but not once have I seen them actually mention the plug metal IS STILL GOLD PLATED. And I LOOKED, a LOT. Well... Yes, the ends are not bare copper, they are gold plated.And the wire is not 100% Cardas.. Though some ads may read like yes they are. nope. Percentage is still a mystery.
Finally are them better than the AC14SE mk2 Signature? kind of. If you have the 14SE Signature, the XL may not do a lot for you. Subtle is the word. better yes. but it is subtle..This first day no break in... Better low level detail.                     
My main claim i I wanted the pure copper plugs, since my Duplex (Furutech GTX) are pure copper too. To me they weren’t worth it without being on sale... Since I had mostly Pangea AC14SE mk2 Signature... well now they are,

After a day breaking 2 in on the amp and power conditioner, I moved the Pangea AC14XL to the preamps. The sound improved a bit, adding a bit of happy to the treble sound.         
Got a few more arriving today. They too will get put on the amp and power conditioner for a day.. Then one on Marantz SA-10, and I have to play with the other two.

A few weeks later.. I bought 12 Pangea AC14XL power cords.Definite improvement over the AC14SE mk2 Signature.I am using the XL on the amp and the power conditioner as they are way better sounding than the AC9SE mk2 Signature. A lot more clarity.
One thing I highly recommend is cleaning out the IEC holes in the cord IEC plug. There is s ton of crud in the IEC plug.
First I pluck off 2/3 of the cotton.then flatten a dozen Q-Tip with a pliers. need the type with a paper stick. Then I use Meguiars Scratch X automotive finish stuff and put some on the Q-Tip. stick down the holes. rub around. black crud comes out. (I will pluck off some of the dirty cotton and use it more) repeat. maybe repeat third time! Then I use Caig ’RED’ cleaner preservative... brush in, use another Q-Tip to rub around. More black gunk. repeat. Then final use Caig Gold new Q-Tip rub a little . done. also polish the blade tips (which also leave a lot of black gunk at first) with the Scratch X and Caig Gold them too.                    
By the way they are still on sale as of 01/01/2019

Of all the Pangea Xl power cords, I do not like the XL on the amplifier. at it was too something compared to the  old cord. (direct from the wall) Put back the home made with DH Labs $8 ft wire, and Furutech ’28’ type Rhodium plugs. Just a little warmer (also fuzzier...) sounding final product. The rest of the Pangea AC14XL seem fine. Great clarity.

Have you ever cleaned out the inside of the IEC plug? That may be really dirty inside.  
Does the AC14SE have shiny BLUE THREADS.. woven into the cord cover? YOU should be able to see them flash in bright light. Not a lot of them, but woven throughout the cord cover.The blue threads are only in the Mk2 version. and is the only way to tell mk2 or original AC14SE.

Also any cord. and includes the Pangea, may take a few days to break in all over again IF it had sat for awhile (months)
So yes I would give it a week before dumping it. Put it on your TV.. or some other appliance if you can. Even the amplifier...