- Mar 3, 2022
I apologize, yes it's DT900 Pro X. Thank you for your advice, I'm going to buy one.Do you mean DT900 Pro X? I couldn't find any information about DT990 Pro X. I have found DT900 Pro X and they have 48 ohms impedance and 100 dB SPL sensitivity. They should work well with the M4 device.