Got a koss porta pro! So much better than I thought but it's a bit too muddy/warm for me. Also rip hair :) : r/headphones

Went ahead and upgraded from my koss porta pro : r/headphones

Koss Porta Pro Review

KOSS Porta Pro Review (On-ear Headphone)

Why are $50 dollar Koss Porta-Pros from the mid-1980s, still one of the best headphones today? - Quora

The Best Value in Headphones

Ive been listening to my new PortaPro for a bit now and yeah. I understand why people love these lol. : r/headphones

Designed for Deep bass performance Comfortable, secure fit with adjustable headband and multi-pivoting ear plates Two adjustable temporal-comfort zone

Koss Porta Pro Black On-Ear Headphones, Retro Style, Collapsible Design, Case Included, Black

just bought my first Koss Porta Pro : r/headphones

Koss Porta Pro® Utility On-Ear Headphones - Koss Stereophones

KOSS Porta Pro Review (On-ear Headphone)