Almost new Koss ksc75 headphones installed in koss portapro headphones headband. A complete audiophile headphones. It sounds 10 to 15 times above its price.
Coming with Ksc75 drivers installed in portapro headband instead portapro drivers.
Sounds equal or better than Grado SR60x, and Sennheiser HD560s.
Price is firm.
On ear headphones, over ear headphones studio monitor