foghornESP-950? or the ESP-9? The ESP-9 was a closed headphone that used an innovative liquid filled pad on it. As of a few years ago the replacement pads were the only remaining part that Koss had on hand to fix ESP-9s. Those were made back in the late 70s and early 80s if I am not mistaken.
TofuTakThank you for your comment. Yes, I did purchase 3 pairs of pads directly from Koss [some time ago]. Of course, they were not "liquid filled". TofuTak, are you saying that the Drop "after market" ear pads for the later versions of the Koss ESP/950[X] will NOT fit the vintage Koss ESP9 headphones? Thank you.
foghornNo, they will not fit as they have different measurements.
As for the pads, they do use a “Fluid filled” technology if you read the old manuals and sales brochures. They moved away from that pad design for the ESP-10, as the pads were costly for them and a source of failure over time.
Ordering from Koss directly is the only place I’ve heard of for replacement pads on the ESP-9