C_Lindbergh
Headphoneus Supremus
308 euros on AliExpress at the moment, not a huge deal but still better than 340.
With import fees I don't think it will be much cheaper, plus you'll lose the excellent customer service from Amazon.
I saw that you can get them for 269 USD from Linsoul (with thier BF coupon), but from what I've read I'm not too keen on shopping from Linsoul.