Review on Beyerdynamic DT 990 PRO Open Studio Headphones - High-Quality Sound for Professionals by Yorum Chachum ᠌

Warm up before use, judging by the resistance, the headphones contain a thin wire, if you drive them without warming up, you can deform the insides and kill the headphones for good, high frequencies and some dip in the middle do not allow you to enjoy the classics, the cello sounds inexpressive, it’s good to listen to classical guitar and acoustic too , in principle, you can also listen to classic rock, though you must use an amplifier, an external sound card is also possible, but with an external power supply of at least 12 volts, theoretically this will give some margin with high resistance and low sensitivity, sound in headphones, especially with a bad amplifier , looks sparse and empty, in this case the music does not please, but the tube preamp can add good impressions, in some cases, because of the instruments in the foreground, previously unnoticed on other headphones appear. Do not compare with the HD 650, they will not understand you, evaluate the model with an open mind, the headphones will find their place in the list of your devices, just do not listen to them from your phone or portable player