In summary, the KPH30i has a better cable (and a mic/remote) at a lower price. The Porta Pro is more portable and comfortable. FYI the portapro x on Massdrop has the better cable and mic/remote. The KSC75, KTXPro1, UR40 have titanium drivers compared to the PortaPro/SportaPro/KSC35 variants. The titanium makes it the highs a bit more sparkly.
Koss' Cult-Fave Porta Pro Headphones Are Back in Stock (and Worth the Hype) They have a 4.5-star average rating from over 800 reviews on Amazon, with the majority being glowing treatises on
I own KSC75, Porta Pro and Kph30i’s. Kph30i’s and KSC75 stock are not comparable at all, KSC75 has effectively no sub-bass and is only really practical for acoustic music imo. Great for walks, biking. Kph30i’s are overly warm but more well-rounded for most things but they are the opposite of bright and the upper end is less expressive for
If you're on the limited budget I'd suggest the KSC75 with a Parts Express Headband ($2) and Yaxi pads ($12). I own the porta pros and kph30i as well but I find if I don't want to wear my DT880s the ksc75 is best for imaging/soundstage out of the 3 koss options. KPH30i with yaxi pads is my favorite out of the 3 for general sound though. They