Still debating whether I will get a KSC75 and use these drivers on the PP headband just out of curiosity Currently I am enjoying the sound of my Monk Plus a lot more than the PP even if the bass is not as "powerful". TLDR: Koss Porta Pro stock, in my opinion way too dark, muffled, muddy and lifeless. What is the difference between Koss Porta Pro and Sennheiser HD 280 PRO? Find out which is better and their overall performance in the headphones ranking. Based on our rating, Porta Pro has a total rating of 6.5 out of 10 vs 7.5 out of 10 for HD 280 PRO. Advantages Koss Porta Pro over Sennheiser HD 280 PRO

I only have Koss Porta Pro, and in my case I'm sensitive to clamp force pressuring 1-2cm wide area above my ear, and those cause no issue. However with a longer use my ears are getting fatigued from the drivers being in constant contact with them, there certainly is a bit of force behind them (no wonder since the headband has to bend to fit the

So I blew into them really hard 4 or 5 times and eventually worked the wrinkle out. This obviously deformed the driver and deflected it out, it also made the inside of the driver wet. I then had to then pop it back into shape. I very gently pressed the center of the driver and it popped back into shape. Then I wondered if this would change the Yeah the Porta pro, KPH40, KPH30I, and KSC35 use the same drivers. The KSC75, KTXPro1, and UR40 use the same Titanium coated driver. Porta Pro and KPH40 are identical other than the clamp force. KPH30i sounds a little different since the pads are a different density and inside the housing there is foam behind the driver as well. COMFORT AND SOUND QUALITY. With Over 92% of user headphone reviews rating the Koss Portapro positively (score of 4 or 5 based on a 5 point scale of several hundred reviews) and not a single professional reviwer giving it less than a 7/10 (based on 6 reviews), you know these Koss' are worth every penny. The portapro is often described in . 324 379 67 186 23 18 219 353 112

koss porta pro driver size