I recently discovered that I can't use just any headphones with my Mbox Mini as it seems to have a somewhat underpowered headphone amplifier. I did this by buying a pair AKG K240 mkII headphones (which sound very very good on everything else, even the jack on the mac book worked) and discovered I couldn't head anything due to their 50Ω Impedance (which as I understand it isn't particularly high for a pro model).
I'm not sure what version of the Mbox Mini I have (its about 3 years old), so I can't be sure of the technical specification, but the 3rd Gen model has 20 mW into 32 R (so I'm not sure on the maximum impedance I can use, I assume <30Ω?, does anyone know how to work that out?).
So I have a dilemma where I need lower impedance headphones, but all I can find are consumer units. Question: Can anyone recommend some professional monitoring headphones (open or closed back) that will work with my Mbox Mini?
Note: I realise I can get a headphone amp, but is this the only option... I'd rather spend £100 on a pair of decent low impedance monitor headphones (if they exist).