Beyerdynamic DT 990 Pro 250 Ohm premium Open Studio Headphones review and SPL dB test. Very popular model home studios. I compare this model with Sennheiser HD 555(mod 595). DT 990 is better low frequency response. I do not like DT 990 construction, headphones is to free(loose) on my ear, it comfortable, but HD 555 is more better comfort, it my opinion, but I like hd 555 comfort more. HD 555 is more better sensitivity, sound more better on bad source. DT 990 not good choise for mobile devices, bad sound card, this headphone need use with good sound card/amp.

Spec:
Transducer type: dynamic
Operating principle: open
Nominal frequency response: 5 - 35,000 Hz
Nominal impedance: 250 ohms
Nominal SPL: 96 db SPL
Nominal THD: 0.2%
Weight without cable" 250g
Cable: 5ft - 10ft / coiled cable
Connections: gold plated stereo mini jack 1/8" & 1/4" adapter
Replaceable cable (with soldering iron)
Replaceable ear pads
Replaceable headband .



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