Review on Beyerdynamic DT 990 PRO 250 Ohm Studio Headphones (Ninja Black, Limited Edition) + 4-Channel Headphone Amplifier Bundle - Ultimate Audio Experience! by Kio Flyx ᠌

I compared them with my modified Denon AH-D5000, the sound of the DT 990 PRO was very disappointing. The highs are terrible, they drill the brain, the mids are not as warm and expressive as the denons, the depth and speed of the lows are bad, there is no infras. Detailing, resolution, scene, at their price can be won back. AH-D5000 has long been discontinued, they are not sold, I use them as references and compare them with other headphones.