I really like the headphones, found the sound excellent, butThey are a bit uncomfortable as the ear pads sit on top of your ears and the pressure gets uncomfortable after awhile. Not only are they comfortable, but the sound is so much better.
Voarmaks Great Size Over Ear Pads Compatible with Koss Portapro Porta Pro Ksc75 Kph40 Kph30i Headphone Headset Earpad Sponge Cushion Replacement Foam Pad Covers (Large Size On Ear Pads) : Electronics
Found this suprisingly kind of promising looking headband mod on aliexpress For KOSS Porta Pro, KSC35, KSC75, KSC55 : r/headphones
Great Ear Pads For Koss Portapro Porta Pro Ksc75 Kph40 Kph30i Heaphone Cushion
Voarmaks Premium Foam Ear Pads Cushions Compatible with Koss Porta Pro PP KSC35 KSC75 KSC55 Headphone (All Red) : Electronics
KOSS PORTA PRO classic- On Ear headphone $40.00 - PicClick AU
Ear Pads Headphone Koss Porta Pro Headphone Replacement Ear Pads Koss - Replacement - Aliexpress
Yaxi Pads for Koss Porta Pro, KPH30i & KSC75 - Gears For Ears
Kph30i - Best Price in Singapore - Feb 2024
YAXI RED EAR Pads for KOSS PORTA PRO NEW (PP-RD) $29.95 - PicClick AU
Koss KSC75 vs. KPH30i vs. Porta Pro [Definitive Guide] - Home Studio Basics
KSC75 Ear Clip - Koss Stereophones
Yaxi Pads for Koss Porta Pro, KPH30i & KSC75 - Gears For Ears
Koss KSC75 vs. KPH30i vs. Porta Pro [Definitive Guide] - Home Studio Basics
Koss KSC75 vs. KPH30i vs. Porta Pro [Definitive Guide] - Home Studio Basics
Koss Porta Pro Black On Ear Headphones, Collapsible Ghana