I used to love this headphone many years ago, until I bought the Sennheiser PX100. The PX100 has tighter bass and more detailed sound. The PX100II and Portapro are close in price. More recently I bought the JVC HA-S160 which was only around $10. I prefer the sound of the HAS160 to the Portapro. While the Portapro has more bass, it is not as tight, and the HAS160 has much better treble. I do prefer the PX100 to the HAS160 though.
If you want a good buy in a Koss headphone, then choose the KTXpro1 or KSC75. These are only around $15. These have better treble than the Portapro and less bass, however the bass is tighter.
If you do like the Portapro sound, then buy the Sportapro, which is basically the same as the Portapro but looks different, and is around half the price.
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If you want a good buy in a Koss headphone, then choose the KTXpro1 or KSC75. These are only around $15. These have better treble than the Portapro and less bass, however the bass is tighter.
If you do like the Portapro sound, then buy the Sportapro, which is basically the same as the Portapro but looks different, and is around half the price.