[Xtreme512]

Hello guys I have a few questions. First of all, I was going to buy 500x and surprisingly it got a discount by 40% and I was able to buy 700x and pay less than the undiscounted price of 500x. But, I didnt lol, instead I just purchased 500x and Im waiting for it to arrive.
 
So, is it bad? I mean, should I have purchased 700x? Whats the differences between them, is it great?
 
My second question is, I know that I can pair them with my ASUS N550JV and Desktop PC which has Creative Xtreme Music card.
 
But can I pair 500x with my Galaxy Alpha? It has Wolfson Microelectronics WM5110E DAC.
 
Thanks.

 

[KG Jag]

I don't know your specific equipment.  However both of these cans work well unamped, although you might get just a bit more out of them with a modest amp.
 
In this line each can up the ladder is better than the one below it.  Not sure why you would go for the down line model--especially under these circumstances.