These are supposed to be some asian ripoff of the DT880's and I saw a frequency response graph awhile ago of these and it was actually better than the DT880s. Now the source wasn't reputable and didn't list testing methodologies. There are also other qualities that go into the sound experience besides accurate sound reproduction but overall these seem amazing to me, and for a ridiculously low price. I was wondering If anyone actually has BOTH the DT880s and the Takstar HI2050s and has compared the two.