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Taking Koss Portapro to the Limit (cool mods). - Page 8

post #106 of 109

Which Grado's are those for? I've seen a couple of models and knockoffs looking around but that looks pretty good.

post #107 of 109
Quote:
Originally Posted by nonconvergent View Post
 

Which Grado's are those for? I've seen a couple of models and knockoffs looking around but that looks pretty good.

Those are the L Cush or Bowls, stock on the SR-225i's and up.

post #108 of 109

I tried sticking the Portapro drivers in the UR40 enclosure I had sitting around, mainly as a comfort improvement, and it improved both comfort and sound, IMO. Not a torture device to wear for long-term sessions, and I guess the treble is slightly softer because the drivers aren't right on top of my ears The foam that the UR40s originally came with lining the wire mesh side of the earcups was removed as well, in order to open them up a bit.

 

Plus the semi-exposed drivers as a result of the second mod look kinda cool as well.


Edited by HPuser9083 - 5/10/15 at 12:21am
post #109 of 109

Koss has actually stuck both Porta-Pro and KSC75 drivers into other full-sized cans enclosures and sold them under different models. I only discovered this by looking at the driver after I found broken models of each. This was more common for them to do in the 80s and 90s, I don't think they are doing this any more. Many of these models would be rebadged as Radio Shack brands.

 

But it would seem the actual Pros and KSCs are more popular since they are still marketed as current models.

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