Hi there. I've been noticing the last couple weeks that my AKG K450 sound really different if driven from my android (ZTE V875) or my laptop (stock Acer K55VM, I'll post the sound card later if I find it). And that's strange, because these are relatively easy to drive headphones, and the difference I'm noticing is way to big to my liking and expectations.
 
So I want to know the ohmage of my phone to see if an amp is necessary or my ears are tricking me, but from all stuff I've seen there's no mention to ohmage whatsoever. Is there any way to find this by myself? I've looked around here for similar threads but didn't find anything
 
Waiting for your answers   

I'm pretty sure most phones and consumer electronics put out 32 ohms through headphone jacks.  I don't think yours would be any different.

thanks. so I suppose the K450's shouldn't sound much different between my phone and laptop, right? Damn, my ears are messing with me! 
 
btw, my sound card is a Realtek High Definiton Audio. it doesn't say anything else.