Ok thanks. Does higher ohm light 250 ohm sound better then 90 ohm? I just check the muse price too expensive and not worth getting it.
Not sure about high ohm vs low ohm.
I own three 600-Ohm headphones, four 250-Ohm headphones and my preferred headphone is 40-Ohms (W1000X)
The Denon AH-D2000 was a well liked headphone and it was only 25-Ohms.
So the Ohms is not really the deciding factor for audio quality.
But if some company goes to the trouble of making a headphone over 100-Ohms, chances are it's going to be fairly good, over wise no-one would buy it.
Usually low costing cheapo headphones are around 32-Ohms, something that will work with out the need of a headphone amplifier.
If you have a A/V or stereo receiver, usually their headphone jack works better with higher Ohm headphones.
(I like to use my DT990 Premium 600-Ohm, plugged into my Yamaha A/V receiver, for watching Blu-ray movies)
I think more in the past the better sounding headphones were higher Ohm, worked well with a studio setup and die hard music listeners would be will to spend cash for a tube amplifier.
But the headphone market today has shifted to smartphone, iPhone, iPod, DAP were low Ohm headphones/IEMs work best.
So companies invest in technologies to improve low Ohm headphones.