The OP's question was
|Are DT 990 in the same class as HD 650 & K701??
Although I have owned all three I am not sure how to go about answering the class question. My first inclination was not to respond but than I realized that folks who haven't heard these headphones would get a misleading impression if those of us who were not happy with the DT990 treated this as a 990 appreciation thread.
I am much more comfortable expressing my preference rather than making class distinctions since it seems to me that all three have the potential to shine for some listeners given their gear, music and taste. In my case, the order is K701>
HD650 (Silver Dragon cable)>
DT990 (600 ohm). Of the three, the 701 is the only one I still own. I find the 650 somewhat too bass heavy/treble light and the 990 unnaturally bass thick. I should point out that I prefer the DT880 to them all. To reiterate, these are not class distinctions, simply my preference.Disclaimers:
Given my evolving collection of music and equipment and that my musical taste is under construction, these audio opinions are derived from a poorly designed experiment. YMMV. Sixty-year old ears.
It's just a hobby.