AKG K241 Sextett Vintage Headphones, 600 Ohm, Very Good Condition, Modified, Rare! For Sale - UK Audio Mart
LN005245 1 Pair 600 Ohm Dia 50mm Speaker DIY Custom Hifi Unit For SONY AKG Headset Headphone|50mm speaker|diy speaker unit50mm speaker unit - AliExpress
AKG K 240 Monitor Black/Gold 600 Ohm With New Neutrik Plug Headphones | eBay
USD$86.00 - 1 Pair 600 Ohm Dia 50mm Speaker DIY Custom Hifi Unit For SONY AKG Headset Headphone - lunashops online shop