Feel free to ask questions. I'll do my best to answer.

Saturday, May 4, 2013

German Maestro GMP 160

My favorite portable headphone with one glaring issue:
Yes, the giant 14dB boost at just a little over 8kHz!  On about 50% of my portable music collection, it's not that annoying.  It may sound a bit bright, but not brutal.  Then there is the other 50% that is totally unlistenable.  That will not due.  These are all  day comfortable and allow me to hear the outside world while I'm walking my dog.  Nearly perfect cans for such activities. The little 100Hz bump sounds about right likely due the lack of deep bass.  It does kick drums justice. :)

Anyway, I decided to do a little REW EQ to see if I couldn't come up with something to iron out think wrinkle in an otherwise sweet set of cans.  I ended up with a filter at 8217Hz removing 14dB with a bandwidth of 0.90.  Here's what that gives your:
Now it's all day great sounding, comfortable, light, and keeps me in touch with my environment.  Perfect for its purpose.


  1. Hey, that's quite interesting! I was thinking about buying this set of headphones and since I'd mainly use it with my rockboxed Sansa Fuze I was wondering if I could do this sort of thing inside the Rockbox firmware. I know there's a pretty good equalizer but would it also do this task?

    Greetings from Austria

  2. I'm not sure about the rock box to be honest. I can say I have tapered down the treble even more since I wrote this. 3 of my friends have this set of headphones. Mine measures the worst only b/c of the bass--the other three have similar bass curves, but they are identical left and right. In fact I wouldn't be able to tell any of the drivers from the other headphones apart. That said, I can't hear the difference and they all sound identical to my ears.

  3. I'll update the curves in the next few days. Maybe I should post the other ones too. It's reassuring that so many measure so similarly. Same goes for the Beyerdynamic DT990--even with various people all over the world measuring them on different set ups.