[azmodien]

After my horrid experience with the MDR-EX71SLs I finally found a decent replacement. I guess it isn't anything new to the people on this board but the Koss PortaPros are very respectable for their price range.

They the least distortion of any headphones I have owned (gets rid of lispy quality on vocals). The sound is very full and clean while still being easy to drive. If there is one critisizm, it's that they leak way too much sound, they are as lound on the outside as they are on the inside. I guess thats the drawback with any open design.

I am pretty impressed with the sound quality after 36 hours of use but I was wondering, do they get even better with time?

 

[EdipisReks]

i like the PortaPros a lot. i don't think they benefit that much from burn in, though.

 

[phyrefly]

I agree, especially with it being easy to drive. I usually have the volume at 2/30, and sometimes I have to turn it down to 1/30.

I don't know if it's my DAP, the PortaPros or my ears

 

[kramer5150]

Enjoy them... My KSC75 puts my EX51 to shame (acoustically). Wait till you amp em'

Garrett

 

[DevilDog]

Yeah, the portapros are great. Best headphone <$50 bar none. And if you like bass, they're even better.

 

[TonyTripleA]

Portapros... my first set of real headphones. I used to like em but in Australia these are now about A$130. At that price the Sony ex888 gives a lot cleaner and better sound right across the frequency range. But nevertheless, I still have a soft spot for the Portapros, that HUGE bass does tire you out after a while though.

TonyAAA

 

[Eagle_Driver]

I agree with most of the positives of the PortaPros. For nearly two decades (20 years) they set the standard for a good-sounding, highly portable conventional headphone which comes reasonably close to (but doesn't quite match) the sound quality of a bigger, more expensive pair of headphones. But now that Sennheiser came out with the PX100 two years ago, the PortaPro is still competitive at its price point -- but I would have to give a very slight edge to the PX100 in overall sound quality.