I wouldn't buy anything from Gold Planar.
I bought the GL1200s, they do not support the product after purchase.
If you have any problems with your headphones after the return date, they'll give you the run-around and make it incredibly hard for you to resolve issues.
The GL1200s are $1400 headphones, imagine the service you'll get from these.
If you have money to burn, I would try these, but I regret my purchase from Gold Planar.