- May 16, 2013
So I just checked a local craigslist, and this guy is supposedly selling a 20 year old dt 990 pro 600 ohm for $100. Before asking if this is a good deal or not, does anyone know anything of such an old headphone? To my knowledge and research, I have not heard of a dt 990 pro that is also 600 ohm, not to mention 20 years old. What could be the differences between this and the modern version(s)?