In the name of the Sennheiser, the AKG and the Holy Beyerdynamic - The Holy Trinity : r/headphones
OEM InEar Earbuds Stereo Headphones for HTC Desire 600 dual sim Plus Cable - Designed by AKG - with Microphone and Volume Buttons (Black) - Walmart.com
AKG K 240 Monitor Black/Gold 600 Ohm with New Neutrik Male Headphones | eBay
RARE AKG KX2 600 ohm CATHEDRAL ORGAN HEADPHONES WITH BOX AND PAPERWORK VINTAGE | eBay