Strange, you could be right as there does not appear to be a 80ohm version on the Beyer website. However, an online music store I viewed offers the DT990 pro in both versions (80ohm or 250ohm) at the same price. Hmm, very odd.   Dave.

I have pretty much decided to buy a pair of Beyerdynamic DT990 pro headphones. The question is, which version? Most people seem to favour the 250ohm model. Is there any difference in sound quality between the 250ohm and 80ohm models? I don't have a headphone amp at present but would be willing...

I have the opportunity to buy either the 80 ohm or 250 ohm versions, both at the same price. I don't, at present, have a headphone amp and am unsure which impedance version to choose. I have no real trouble driving my HD600's which I understand are 300 ohm. My DT250's are 80 ohm and there is no...

I normally use a pair of Sennheiser HD600 headphones and I enjoy the sound they produce. I listen to mainly classical music but not exclusively. As I am something of an amateur sound recordist I also own a pair of closed back Beyerdynamic DT250's which I find useful.   Now to my problem. The...