Depends how you mean hard to drive - they don't take much current (3-4ma IIRC) but they do like lots of voltage swing to get the most out of them.
They don't take much to sound loud. My laptop on it's own can get em sounding loud enough but things sound smeared, bass more boomy, indistinct.
There's a chance she'll see through that and it's not one I'm prepared to take lol
Could do with that for in bed
so put them on, plug them in and hit play - it's a criminal offence to have unused HD650s
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