Summary: Too much bass, strident treble. I guess it could be worse. Midrange is not bad. It might sound OK straight out of my out of my cheap Android phone which lacks power and sounds kind of muddy.
The treble hurts me. I wouldn't keep them though, even if someone gave them to me for free. I wouldn't give them to my kids either because I don't want to destroy their high frequency hearing.
Really ugly too.
Pros: Kinda of OK - there are much worse out there
Cons: Too much bass, treble is an assault upon my ears
Summary: Sennheiser HD25-II is one of hot model in on-ear headphone. I buy it because of high rating from different users.
However, i feel very disappointed when I use it.
First of all, the headband structure is too tight. It makes my head painful and can't wear for more than 5 minutes, 1 song?!
Bass, quite strong
Mids - not natural
Highs - clear, but the highs are too aggressive. It hurts my ear when listening for long time.
Pros: Light weight, portable
Cons: Hate plastic, uncomfortable, painful, not ergonomical , highs are too aggressive