Archimago's Musings: MEASUREMENTS: AKG Q701 "Quincy Jones Signature" (2012) & AKG K260 (vintage 1987-1988). And recent interviews with audiophile cable/power people [Shunyata / AudioQuest].
AKG K92 vs. K240 - Home Studio Basics
AKG K260 Headphones Owned by Moby | Reverb
Pure Wool Headband Cushion For Akg K260 K270 K270s K271... Studio Mkii Over Ear Headphone Pads Cover Top Up Head Band - Earphones & Headphones - AliExpress
AKG K-260 Professional Headphones | Headphones | Others and Accessories | Spring Air