Lisa, as you note, un-modded PX100s are bassy and dark. Though they are indeed smooth. That is to say, unmodded, they are smooth and DARK. The below-linked post should make the point clear:
http://www6.head-fi.org/forums/showt...ark#post247630
So, Lisa, I gave your mod a try! It is an immense improvement in the sound quality. I used your technique (reversed Senn pads) first. Much to my surprise, the PX100 drivers get aggressive FAST as they are pulled away from the ears! For my taste, your mod gave me just a bit too much highs and not quite enough bass, and a very forward but smooth midrange. So, I continued the experiment with radio shack pads, with Grado comfy pads, with non-reversed Senn pads with a hole cut in them, and finally with just non-modded Senn HD414 pads.
I did a lot of experimentation (a few hours) and comparing with my better headphones. My final favorite mod was with the un-modded Senn HD414 pads, just slipping them on the PX100s. With your mod (reversed modded Senn pads), the tonal balance was starting to get into Sony V6 territory. Great sound, but definitely on the aggressive side. Did I mention that these drivers get aggressive FAST when pulled away from the ear?
For my taste, with the un-modded Senn HD414 pads, the PX100s compared well with my Grado SR60s. The PX100 drivers were being pulled away from the ear just enough for my taste (as compared to the very thin PX100 stock pads). The un-modded HD414 pad PX100 mids were more forward and perhaps smoother than the Grados, the bass was definitely more pronounced in the modded PX100s than in the SR60s, and the highs were in some ways more balanced than the elevated highs of the SR60s, but there was some shrillness or peakiness in the highs of the PX100s (with stock Senn HD414 pads, that is) that is not present in the Grados (this was the biggest weakness of the modded PX100s). The tonal balance and midrange of the PX100s with the unmodded Senn HD414 pads was rich and smooth, with rock solid bass and very forward mids. To my ears, they are holding their own with the SR60s all the way. And keep in mind I am a very big fan of the SR60s.
The general lesson here, I think, is that upside of trying different pads on the PX100s is just enormous! Each person's sweet spot is going to be a little different, as to how far they want the drivers away from the ears (as the drivers are set back further from the ears by the pads, you get more highs, less bass, and a more forward midrange), but the experimentation is cheap and is going to get you some extremely nice sound from these little guys. For my taste, it is in the same vein and quality as the Grado sound (though I won't be selling off my treasured SR60s anytime soon!). And the comfort and build quality are just wonderful with the lightweight but well-thought-out construction of the PX100s.
THIS IS A MAJOR MOD. At the very least, I think I have a new favorite pair of knock-around headphones.
Thanks for the idea!
Quote:
Originally Posted by Lisa
Of course they don't fit in their carrying case anymore and are a bit less low key. But you can always swap the pads back if and when you need the extra portability. So if you have a pair of Senn pads lying around and you've always been a bit bothered by the overpowering bass and treble roll off or you are just curious, give this mod a try.
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